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Glaring Lack Of Investment In Aircraft Shelters Highlighted By B-1B’s Sudden Retreat From U.K. Airbase

Multiple reports now say that U.S. Air Force B-1 Lancers left the United Kingdom over the weekend due to the threat of an Iranian-directed near-field drone attack broadly akin to Ukraine’s Operation Spiderweb that decimated Russian bombers. Though many specific details are still unconfirmed, this is an entirely plausible mode of attack that TWZ has been warning about for many years now.

Short- and long-range drone threats against parked aircraft have now morphed fully from theory to reality, as also demonstrated by losses in the course of the conflict with Iran, and even non-state actors are increasingly brandishing these capabilities. Despite the increasing dangers posed to planes out on open flightlines, the Pentagon continues to drag its feet on building hardened aircraft shelters and other fortified air base infrastructure.

Before the hasty and unexpected departure of the bombers on Sunday, B-1s had been deployed to RAF Fairford continuously since March, initially in support of Operation Epic Fury against Iran. A contingent of B-52s had also conducted strikes on Iran from Fairford, but left back in July. The base is a major operational hub for the U.S. military in the United Kingdom, and regularly hosts strategic aircraft, including bombers and U-2 spy planes.

Dan Rivers, U.S. correspondent for ITV News in the United Kingdom, was among the first to report on Monday that the B-1’s quick departure had been prompted by concerns about a potential Spiderweb-like drone attack ordered by Iran, citing an unnamed source. Other outlets have subsequently reported similar details, all sourced to anonymous U.S. and British officials.

Ukraine’s unprecedented Operation Spiderweb last year involved simultaneous covert near-field attacks using explosive-laden quadcopter-type drones on airbases across Russia. At least 10 Russian bombers, as well as a variety of other aircraft, all parked on open flightlines, were destroyed.

“They didn’t fly out by accident,” U.S. President Donald Trump told reporters during a gaggle at the White House on Monday when asked about why the B-1s had left Fairford. “There were some threats.”

A satellite image showing B-1s parked in the open at RAF Fairford on July 29, 2026. PHOTO © 2026 PLANET LABS INC. ALL RIGHTS RESERVED. REPRINTED BY PERMISSION

“I can’t tell you that, but if they did, they’ll suffer greatly,” Trump added in response to a separate question about whether Iran might have managed to get weaponized drones into the United Kingdom.

“What you saw there was the Secretary of War [Pete Hegseth], out of an abundance of caution, trying to protect our guys,” U.S. Vice President J.D. Vance said during a separate press engagement on Monday. “We do feel, with some confidence, that the Iranians are – they’re trying to do what the Iranian state has done for 49 years, which is engage in acts of terrorism against the United States, and a lot of other people, as well. So, we are being extremely cautious.”

Another satellite image offering an overall view of RAF Fairford. Google Earth

It’s also worth noting here that British authorities had arrested five men on suspicion of driving bomb-laden vans toward the base back on September 27. Those individuals were released on bail after no explosives were found in the vehicles. U.S. and British officials have also raised the possibility of an Iranian link to that incident.

“We’ve documented what happened [near Fairford] last week. I wouldn’t just directly tie that to the move that was made,” U.S. Secretary of State and National Security Advisor Marco Rubio also told members of the press on Monday. “The only reason why you guys are focused on how many planes are at Fairford is because of the threat that happened last week.”

“We have confidence in the security of all of our bases, because all of our bases are [sic] theoretically could be threatened at any moment,” he added.

Rubio’s comments notwithstanding, the remarks from Trump and Vance make clear that there was some recent threat intelligence that contributed to the decision to pull the bombers from Fairford. There are still many questions about the exact nature of the potential attacks, and how imminent, or not, the danger may have been.

Regardless, as mentioned, the prospect of a near-field drone attack on a base like Fairford carried out by actors in close proximity is extremely plausible, and the barrier to entry to such an operation is relatively low. Spiderweb may have thrust this reality into the public consciousness in dramatic fashion, but the danger well predates that operation, and even the start of Russia’s all-out invasion of Ukraine in 2022.

TWZ has been highlighting exactly these kinds of threats in the course of a decade or so now of regular reporting on drone incursions over U.S. and foreign military facilities and critical infrastructure, as well as American naval vessels operating offshore. Langley Air Force Base in Virginia and Barksdale Air Force Base in Louisiana, some of America’s most strategic airbases domestically, are among the facilities that have had to grapple with this in the past. After the Langley incident, in particular, it had become clear to the larger public what we had been reporting for many years, that the United States does not control the airspace over even its most critical military installations.

This all extends overseas, as well. In November 2024, there was a rash of drone sightings over and around several airbases in the United Kingdom, including RAF Fairford. This has been an issue more broadly in Europe in recent years, as well. This was only further underscored by an attempted drone attack on a Ukrainian An-124 at an airport in Germany in August, which authorities in that country have blamed on Russia.

New footage of yet another act of Russian terrorism on EU soil, showing the drone loaded with explosives on the tarmac at Leipzig/Halle Airport, just meters from a Ukrainian Antonov An-124 cargo aircraft.

According to German authorities, the drone was carrying an improvised… https://t.co/eCZaLfz9yx pic.twitter.com/DbRz87wgIv

— SPRAVDI — Stratcom Centre (@StratcomCentre) August 5, 2026

A drone attack on Fairford would also not necessarily have had to come from somewhere very close by. Longer-range one-way attack drones are steadily proliferating, and can be launched using a variety of methods from positions on the ground, as well as vessels at sea. TWZ explored the very real threat of sea-based drone attacks, including ones conducted covertly, and Iran’s specific ability to carry them out globally, following the leak of an FBI alert back in March.

The proliferation of lower-end one-way-attack drones has ‘democratized’ precision-guided attacks, even for non-state actors. The fielding of automated targeting capabilities, driven by developments in artificial intelligence and machine learning, is also becoming more and more widespread. That technology will soon enable these weapons to find and strike even moving targets on their own. Even without anyone at the controls and without the drone putting out any detectable radio emissions, very effective precision attacks can still be launched at static targets, like known parking areas for aircraft at airbases, just by using basic map coordinates or Google Earth. It’s also worth pointing out here that the definition of a stand-off attack is becoming increasingly blurry, with even quadcopter-type drones capable of flying miles away to conduct a kamikaze attack on a target based on a set of GPS coordinates.

Ukrainian Saker UAV with AI capabilities. The video shows the process of target recognition. It has reportedly already been put to use several times against Russian targets. pic.twitter.com/NVNJyxUjGP

— NOELREPORTS 🇪🇺 🇺🇦 (@NOELreports) January 25, 2024

Overall, it is an indisputable fact that aircraft sitting exposed on a flightline are particularly vulnerable to drone attacks, as well as other threats. This is something U.S. military officials have acknowledged themselves. Fairford, where B-1s and other bombers have no option but to park out in the open in well-established areas that are plainly visible from outside the base’s immediate perimeter, is indicative of how American military aircraft are generally positioned on the ground abroad and at home.

As we wrote all the way back in 2017:

“Similar swarming strikes could be unleashed behind the front lines as well, with hugely expensive and low density/high demand combat aircraft being especially vulnerable to this sort of tactic—something General James Holmes alluded to inadvertently while speaking to the Air Force Association, stating:

‘Imagine a world where somebody flies a couple hundred of those and flies one down the intake of my F-22s with just a small weapon on it.’

Actually, it would be even easier to just strike the jets as they sit idle and vulnerable on the flight line. One swarm could see a whole squadron of tightly packed fighters destroyed without even having a chance to fight back.”

This picture of a B-1 at Fairford on March 7 shows how bombers and other aircraft are typically parked at the base. The line of photographers along the fence line also underscores how close those parking spots are to the base’s immediate perimeter. JUSTIN TALLIS / AFP via Getty Images

With all this in mind, a heated debate has emerged in the past few years in and around the U.S. military about the value of investing in new hardened aircraft shelters, as well as other fortified infrastructure.

To date, the U.S. Air Force, in particular, has put virtually all emphasis on surface-to-air missiles and other active defenses, as well as the dispersal of aircraft, over physical hardening. The conflict with Iran, in which a number of American military aircraft have been damaged or destroyed on the ground by drone and missile attacks, has underscored the limits of these strategies.

Second angle. pic.twitter.com/NUupdRkdm9

— OSINTtechnical (@Osinttechnical) March 29, 2026

“I’m not a big fan of hardening infrastructure,” Gen. Kenneth Wilsbach said at a roundtable at the Air and Space Forces Association’s main annual symposium in 2023, offering a prime example of this viewpoint. “The reason is because of the advent of precision-guided weapons … you saw what we did to the Iraqi Air Force and their hardened aircraft shelters. They’re not so hard when you put a 2,000-pound bomb right through the roof.”

Wilsbach was commander of Pacific Air Forces (PACAF) at the time. He subsequently became head of ACC and is now Chief of Staff of the Air Force, the service’s top officer.

“I think that I don’t want to spend a lot of money on hardening shelters. Unless you’re going to send something 100 feet or more underground, we can blow it up, and so can they,” Wilsbach said in an interview with Breaking Defense in July of this year when asked explicitly if his position changed. “So, the economics of building a shelter that is impervious to a strike doesn’t work.”

U.S. Air Force Chief of Staff Gen. Ken Wilsbach speaks during an all-call with personnel at RAF Mildenhall, another base in the United Kingdom, on July 13, 2026. USAF

“I think the economics favor defending your airspace, defending your ground space with systems that can defeat the incoming rounds, versus building a shelter,” he added. “Some people would argue, well, you should do both. Well, that’s even more expensive. And the other thing is, the shelter doesn’t go anywhere.”

It is fair to point out that typical above-ground hardened aircraft shelters are not invulnerable, especially to attacks involving ballistic, cruise, and certain air-launched threats. There are also substantial cost and other factors to consider when it comes to any major military construction effort.

That being said, having more hardened infrastructure also imposes costs and complexities on opponents, who have to dedicate more advanced and costly munitions and other resources to ensure targets are neutralized. Shelters have the knock-on benefit of complicating the targeting process for an enemy by obscuring where aircraft are or are not positioned, to begin with. An opponent has to treat shelters like they are full even if they are empty.

When thinking about hardened aircraft shelters, stereotypical Cold War-era reinforced concrete structures typically come to mind. However, they do not all have to be built to a one-size-fits-all standard with the same degree of hardening across the board to be useful. Shorter-range drone attacks are typically carried out by platforms carrying small explosive charges or that are designed to drop small bomblets. Even longer-range one-way-attack drones generally have smaller warheads than traditional missiles, they also hit with less kinetic energy.

A US Air Force F-16 fighter sits inside a traditional hardened aircraft shelter. USAF

A structure that shields against smaller blasts and shrapnel, also including from cluster munitions that can be readily scattered across wide areas, is one that then has to be addressed by more capable weapons. This could even include mobile or otherwise temporary shelters that offer sufficient concealment and protection.

This picture shows what the Air Force described as a “prototype portable camouflage, concealment, and deception hangar” in use during Exercise Hoodoo Sea in 2023. Air National Guard The prototype portable hangar intended to support camouflage, concealment, and deception efforts in use during an Air National Guard-led exercise in 2023. Air National Guard

Eliminating, or at least substantially mitigating, the lowest rung of threats creates a dilemma for opponents, who then have to decide whether it is even worthwhile to attempt certain types of attacks. There is clear value in narrowing the available options for the enemy and pushing them toward having to expend higher-end, more expensive munitions, that are available in smaller quantities, and that traditional active defenses may be better optimized to handle. As an example, it may be more viable to shoot down a small barrage of incoming cruise missiles than a swarm of dozens of drones.

Active defenses, especially surface-to-air missile batteries and interceptors to go with them, have historically been very expensive. Lower-end counter-drone-focused interceptors and directed energy weapons are helping to bring these costs down in some regards. Even so, those capabilities come at a significant cost.

There are magazine and stockpile depth issues at play here, too. This is something that has also been brought front and center by the conflict with Iran, which has fueled already long-standing concerns about the sufficiency of stockpiles of air defense interceptors, other critical munitions, and the capacity to replenish them quickly. This is something the British government, among others, is also grappling with, as you can read more about in our separate reporting here.

Furthermore, losses of aircraft on the ground are not without their own costs, which are even more lopsided if an opponent can simply use lower-cost weaponized drones. U.S. bombers are particularly expensive and prized assets that are in short supply compared to the level of demand, as seen during the height of combat operations earlier this year against Iran. When it comes to B-1s, specifically, there are only 45 of them left in service today. A dozen of them being knocked out in one go would have major repercussions strategically. Losing even one would also be a propaganda coup for whoever might be responsible.

How many shelters can we build for the upgrade cost of one Zumwalt class DDG that will probably be parted out in 10 years anyway?

— Tyler Rogoway (@Aviation_Intel) October 5, 2026

On top of all this, the U.S. military simply will not always have the luxury of being able to rapidly relocate aircraft in response to threats. Moving a dozen bombers on short notice takes massive resources. It is not just aircraft that have to be repositioned, but supporting personnel and assets, as well as weapons and fuel. Having to shift to alternate locations could easily have negative impacts on tempo and other aspects of operations, especially in the midst of actual conflict. RAF Fairford is one of only a few bases globally that can support bomber operations for a prolonged period.

More recently, there have been signs of changing mindsets on the matter of hardening across the U.S. military. In January, Joint Inter-Agency Task Force 401 (JIATF-401), a focal point for counter-drone efforts the Pentagon established last year, issued explicit guidance regarding the use of netting, cables, and other kinds of passive physical defenses around bases and other critical infrastructure. A contracting notice in March also called attention to plans for new hardened underground facilities at Al Udeid Air Base in Qatar.

“There is value in some light protection against small, unmanned threats,” Gen. Wilsbach also told Breaking Defense in July. “Some of them — just nets that are up that keep a small, few-$100 drone from getting next to a $2 billion aircraft. That actually works, [and is] really cheap.”

A graphic included a contracting notice put out by authorities at Langley Air Force Base in 2024 showing how sunshade-type shelters at the base might be equipped with anti-drone nets. USAF

“It’s not either or,” Wilsbach said in a separate interview with Air & Space Forces Magazine in July. “The net keeps the small UAS [uncrewed aerial system] from getting close to an aircraft that you’re trying to protect… That’s a very inexpensive way to give you some modicum of protection without killing your checkbook on really exquisite defensive systems.”

In spite of these institutional developments, action to implement such recommendations on a broad basis has continued to lag. There still does not appear to be any major department-wide push to build new hardened aircraft shelters or other fortified structures at facilities globally. The U.S. Air Force does have a certain number of hardened aircraft shelters at bases now, especially in the Pacific and Europe.

This is all despite a very visible trend in the construction of new aircraft shelters and other hardened infrastructure elsewhere around the globe, including in China, Russia, North Korea, and Iran. Even before Operation Spiderweb, Russia had already initiated a large-scale effort to build new hardened shelters at various bases, especially on the occupied Crimean Peninsula, in the face of expanding Ukrainian drone and missile attacks. This effort has now extended to building the huge hardened shelters for the country’s bomber force, something the country has never done before.

Work underway in December 2024 on new hardened aircraft shelters and other infrastructure at Russia’s Belbek Air Base on the occupied Crimean Peninsula. PHOTO © 2024 PLANET LABS INC. ALL RIGHTS RESERVED. REPRINTED BY PERMISSION
Another satellite image taken on June 20, 2026, showing hardened aircraft shelters being built at Engels Air Base in southeastern Russia, which is a major bomber hub. PHOTO © 2026 PLANET LABS INC. ALL RIGHTS RESERVED. REPRINTED BY PERMISSION

“It is inappropriate to discuss matters of intelligence, and we will not discuss specific force protection measures,” a U.S. Air Force spokesperson told TWZ yesterday when asked about the reports that Iranian drone threats prompted the recent removal of the B-1s from Fairford. “The Department will continue to assess the threat environment surrounding our installations and take appropriate actions to protect our people, our platforms and the bases where our forces operate from.”

We still do not know exactly how serious or imminent any recent threat to the B-1s at Fairford was that contributed to their hasty departure. Regardless, the reports of concerns about potential drone attacks remain very plausible. The reality here is that a dozen bombers were yanked from a forward operating location in Europe without an adversary ever having to fire a shot. This is a problem set that is only growing, especially as lessons and expertise on low-end weaponized drones from the war in Ukraine are spreading around the globe.

A B-1 bomber seen parked out in the open at RAF Fairford on March 15, 2026. Matthew Horwood/Getty Images

Erecting new aircraft shelters and other hardened infrastructure would not be a full solution to those threats by themselves. At the same time, they would be a valuable added layer of defense, and a passive one that would have a huge logistical footprint to operate once the initial investment is made. The lack of movement to better fortify American airbases globally is only becoming more and more glaring, and it remains to be seen if real action will not occur until lessons are learned in a most unfortunate way.

Contact the author: joe@twz.com

The post Glaring Lack Of Investment In Aircraft Shelters Highlighted By B-1B’s Sudden Retreat From U.K. Airbase appeared first on TWZ.

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Could NASA’s SR-71 Blackbird Be Modified To Reach Mach 4?

During his time as the lead propulsion engineer for SR-71 Blackbirds at NASA’s Dryden Flight Research Center, Tim Conners looked into how to push the iconic recon plane to fly faster than it had ever flown before. The world record for any crewed jet-powered aircraft is officially Mach 3.3, or 2,193 mph. It was set by a Blackbird in 1976 “on a straight-line course over Edwards Air Force Base in California.” In a recent interview with TWZ, Conners said he investigated whether there were ways to get Blackbird to approach Mach 4, equivalent to roughly a whopping 2,660 mph at altitude. Fast forward to today, with the possibility that NASA could be returning the SR-71 in some configuration to its test fleet, as well as its potential missions, the question of just how fast could the airframe go has become far more relevant than just a hypothetical exercise.

Conners spoke to us about his knowledge of plans to restore SR-71 #844, which had mysteriously disappeared from NASA’s Armstrong Flight Research Center, as well as its potential uses, in a deep-dive interview here. Prior to the revelations about the missing Blackbird, speculation about NASA’s renewed interest in the type was sparked last month, when NASA Administrator Jared Isaacman showed the silhouette of an aircraft that immediately drew comparisons to SR-71 during a speech at the annual All-In Summit in Los Angeles, California. Isaacman pushed back on a direct link to the SR-71 but said his agency is working hard to get “back in the business of flying high and fast again.”

NASA Administrator Jared Isaacman talks at the All-In Summit about new high- and fast-flying X-planes with the eye-catching aircraft silhouette in the background. All-In Summit/YouTube screencap

Given that, we wanted to know what limited the SR-71’s speed in its original configuration and how fast Conners thought it could go with modifications.

“The study that I did at Dryden was purely conceptual,” Conners explained of his work on the topic there in the early 1990s. “I asked questions of the Lockheed folks and the Pratt folks regarding limitations on speed. So stagnation temperature. What can we get to at altitude?”

The Blackbird, he said, “flew a trajectory that was usually operationally limited to 450 knots equivalent airspeed. If you look at the flight envelope, that defines the right edge of the envelope.”

SR-71 Blackbird. (Courtesy photo via USAF)

“The engines, however, were optimized to fly at about 500 knots equivalent airspeed, 475 to 500, and for whatever reason, there was a mismatch between what the engines were designed to do and what the airframe was ultimately optimized for, which was flight at around 450 knots,” the engineer added. “And you end up with that limitation now, the equivalent airspeed curve hooks up and to the right as you go up in altitude, so it sweeps out Mach number, and as you sweep out Mach number, the stagnation temperature is going up on you.”

“So you do reach a point, even at 500 KEAS [knots equivalent airspeed], where you end up with a constant value up at altitude once you’re in the stratosphere,” Conners said. “The Blackbird was trimmed or limited at that speed on the right side of the envelope, and that equated to a certain stagnation temperature. That limitation was driven primarily by the material strength of the engine front frame, from what it was described to me, and that’s what drove the analysis we did at NASA.”

SR-71 tail number 844 during its service with NASA. (NASA)

To even consider pushing the aircraft past the world record speed, Conners said something had to be done to mitigate the tremendous effects of the extreme heat on the air entering the engines.

“We weren’t looking at active cooling of the frame by pumping coolant through it,” Conners recalled. “What we looked at was spray cooling of the incoming airflow to lower the bulk temperature, so it would only be used when you were accelerating beyond about Mach 3.4. You would only very briefly do Mach excursions to a higher Mach number, and then come back. That was the conops for that system.”

“This is a way to [get to a higher Mach range] briefly,” the engineer postulated. “You could probably get to a higher Mach number. The problem is that if you clog or freeze the system, if it fails while you’re at higher speed, you have to decelerate in a hurry to protect the assets.”

Among other impediments to breaking the speed record, the Blackbird’s existing power plant was not up to the job, according to Conners.

“So that weak link was the J58,” he explained. “It had the performance, but not the material strength. If we’re looking at alternate engines designed to handle the higher Mach capability, then that could put the limiter on the airframe at that point, which we were told at NASA was somewhere like up near Mach 4 for brief excursions.”

Aviation expert Paul F. Crickmore, who’s written several books about the Blackbird, told us that the aircraft was designed around a sustained cruise speed of Mach 3.2, with the primary critical limitation being aforementioned compressor inlet temperature (CIT).

Above 427 degrees Celsius (about 800 degrees Fahrenheit), the engines would be damaged, Crickmore noted. But if outside air temperature was colder, the aircraft could go faster before hitting that limit (in practice, Mach 3.3).

Temperature was just one factor in limiting how fast the SR-71 could travel, Crickmore explained. The shock waves from traveling so fast would also tamp down the Blackbird’s ultimate speed potential.

Paul Crickmore’s latest book on the SR-71, Lockheed Blackbird: Beyond the Secret Missions. The Missing Chapters. (Osprey Publishing)

“On the SR, you have to think three-dimensionally,” Crickmore explained. “But looking in just two dimensions, you would have an oblique shock wave on the nose, the first shock wave, and it would be at 90 degrees on either side. As the airplane got faster, that cone became more sharp until you got down to about 32 degrees. Now, at that speed, you’re at [Mach] 3.2. That oblique shock wave was still outside the envelope of the airplane – you don’t want to get that shockwave going anywhere near the flight controls. The faster you go, the narrower that cone, and the closer it gets to the wingtips, which is not good. This is the thing: People say, ‘Oh yeah, we can go maybe Mach 6.’ Well, right. But it’s not just about that. It’s about a lot of other things.”

The limiting factors imposed by the CIT value and the shockwave effect are also recalled by the late SR-71 pilot David Peters, recounted on the Habubrats SR-71 account on X.

“A little clarification on the speed. The issue is that I have been limited to less than Mach 3 on a few occasions because the outside air temperature was entirely above standard, and 427C came up at about [Mach] 2.95. On other occasions, like the Murmansk deal I got above 3.4 (3.49 on one occasion) and wasn’t close to 427C. The actual limiting airspeed is around 3.55; that is where the spike, being at full retraction loses the intercept on the shock wave and can no longer position it correctly in the inlet. Also, the overflow of the shock starts to go over the wing and interfere with the flight controls. So the limiting speed as configured would be about 3.55 so long as you don’t exceed 427C.”

For his part, Conners said that “shock effects at the inlet can be accommodated through rescheduling the inlet spike movement and perhaps making changes to the bypass schedules. None of that would necessarily be simple, and any changes would require careful envelope expansion. But it would not be impossible.”

Regardless of any other factors, Conners, the Blackbird engineer, remembered that his effort in boosting the jet’s speed never took off.

“It never got beyond me just sizing tank volume, considering different fluids that might work as a coolant, and then just gauging the relative appetite of NASA hierarchy for something like that,” Conners stated. “They weren’t interested in the risk. Nobody was asking for that Mach range.”

But that may be changing. It seems clear that one of the biggest challenges of getting the Blackbird back in the air will be its engines. They have sat for a long time, and getting them into a flyable condition could be the limiting issue. Beyond that, equipping the SR-71 with new engines also may represent the biggest opportunity for NASA getting a return on investment from its revived Blackbird.

(NASA)

In our interview, Conners told us that the feedback he heard about the remaining Blackbird J58 engines was “discouraging” because “the engines are indeed unserviceable.”

“I don’t believe that is based on an actual attempt to run them,” he explained. “It is based on inspection. Probably no surprise. They’ve sat idle, you know, for 27 years. That is what led to questions going back and forth regarding how the airframe would be powered. And that’s what led into, if you connect the dots, that’s where the airframe would be used as an engine test bed.”

Different engines “would have to be high-Mach bypass systems,” he noted. “We can speculate on which engine company might be developing those systems, but yeah, I don’t want to give it too much away because I don’t want us to lose the inside information that we got.”

Pratt & Whitney J58 engine. (National Air and Space Museum)

Also, the flight regime approaching Mach 4 would likely be one of the areas NASA is most interested in. It’s here where a combined cycle engine capable of hypersonic flight, one that contains both turbojet and ramjet or scramjet functions, would ‘hand-off’ propulsion from the turbojet to the other that is optimized for extreme speed. This is the same concept behind Lockheed’s SR-72 concept. Having an aircraft, and especially one that is not mired in deep classification and hidden from view, that can actually test this transitional flight regime could be of extreme value in unlocking a future where hypersonic flight is more accessible.

“Yeah, that could very well be what we’re looking at here,” Conners told us when we asked whether Blackbird’s open classification level is a driving factor in using it as a test bed for this research. “I’ve had friends ask that question this week. We were talking about the SR-72. Where is that at? I don’t know. I know people who went to work on it years ago. I’ve never heard anything since. So it could be that that’s so deep black that there’s no way that platform could be used as a test asset. So I think it’s precisely what you said. The Blackbird’s no longer classified, and that it’s possible that the engines that might be used in Blackbird wouldn’t be classified either.”

Lockheed’s ‘SR-72’ hypersonic plane concept. (Lockheed Martin Skunk Works)

So, reengining the SR-71 may solve two birds with one stone — providing a modern powerplant that won’t require the J58s to be revived and taking care of the inlet temperature issues discussed above that would allow the SR-71 airframe’s full potential to be exploited in testing. The fact that the jet can carry a massive payload on its back could allow it to provide critical testing of the handoff for dual cycle engine concepts.

This is just one use, of course. With the explosion in high-speed flight for defense purposes over the last decade, there are many other reasons to push a Blackbird to higher Mach numbers.

So with all this in mind, if we get the Blackbird back at all, maybe it will roll out with some major modifications that could indeed push it to new velocities.

Contact the author: howard@twz.com

The post Could NASA’s SR-71 Blackbird Be Modified To Reach Mach 4? appeared first on TWZ.

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Where Are The Aircraft Carriers?: October 6, 2026

Aircraft carrier USS George H.W. Bush arrived in Phuket, Thailand, on Sunday for a scheduled port call after 188 days at sea, leaving just one carrier strike group, led by USS George Washington, in the Middle East for the first time in months. Across the Pacific, USS Abraham Lincoln, which Washington relieved in August, is holding off the west coast of California to disembark her air wing and offload ammunition ahead of a well-deserved homecoming this week. With several outlets now confirming that USS Theodore Roosevelt will deploy to the Middle East, there very well may be three flattops in the region again, but any overlap will be temporary given normal rotation schedules.

Here’s TWZ’s weekly carrier tracker monitoring America’s flattop fleet, including deployed Carrier Strike Groups (CSG) and Amphibious Ready Groups (ARG), using publicly available open-source information. Check out last week’s report here.

A custom graphic and visual created by TWZ and Ian Ellis-Jones showing the status and position of America's fleet of eleven aircraft carriers and deployed amphibious ready groups.

George H.W. Bush Drops Anchor Off Phuket For Liberty Port Call

USS George H.W. Bush arrived in Thailand on October 4 for a scheduled port visit, U.S. 7th Fleet announced. Guided-missile destroyer USS Delbert D. Black escorted the flattop from her previous station in the Arabian Sea and joined the call. Bush deployed from the continental U.S. on March 31 and took the long way to the Middle East, rounding the Cape of Good Hope to limit exposure to the treacherous Red Sea and Bab Al Mandeb Strait.

Nimitz-class aircraft carrier USS George H.W. Bush (CVN 77), arrives in Phuket, Thailand, Oct. 4, 2026. George H.W. Bush is conducting routine operations in the U.S. 7th Fleet area of operations. U.S. 7th Fleet, the Navy’s largest forward-deployed numbered fleet, routinely interacts and operates with allies and partners in preserving a free and open Indo-Pacific. (U.S. Navy Photo)
USS George H.W. Bush (CVN 77) arrived in Phuket, Thailand, on October 4, 2026. U.S. Navy photo

On October 3, Bush switched her Automatic Identification System (AIS) transponder on about 15 nautical miles southwest of Thailand, broadcasting her position publicly for the first time since April, based on data available via MarineTraffic. The carrier dropped anchor approximately two nautical miles off the coast of Phuket the following day.

Transit of aircraft carrier USS George H.W. Bush as she arrives in Thailand for a port call. Source: MarineTraffic; reprinted with permission.
USS George H.W. Bush’s transit into Phuket, Thailand, on October 3. Source: MarineTraffic/KPLER (Reprinted with permission)

Bush had been operating in the U.S. Central Command (CENTCOM) area of responsibility (AOR) since April, when the U.S. briefly had three carriers on station, in support of operations against Iran. “For the last six months, the strike group supported Operation Epic Fury and the U.S. naval blockade in the U.S. Central Command area of responsibility to secure maritime security and stability in the Middle East,” according to the 7th Fleet statement. That force posture was short-lived, however, as the USS Gerald R. Ford transited the Suez Canal northbound on May 1 and began her journey home not long after Bush arrived. Bush chopped into the U.S. Pacific Command (PACOM) AOR sometime over the past week while en route to Phuket, leaving a single CSG in CENTCOM.

The current composition of CSG-10 is USS Mason, USS Ross, and USS Donald Cook, but none of the destroyers joined the flagship in Thailand. Why Black escorted the carrier instead is unclear. Black departed Mayport, Florida, on January 3, 2026, for an independent deployment and is long overdue for a liberty call after nine months. Mason transited the Malacca Strait southbound on September 29, according to public AIS data, and is currently in Singapore; the purpose of the stop is unknown. Ross and Cook have not broadcast their positions in months, but were last operating in the Arabian Sea.

The Navy confirmed this was the first port visit for Bush since deploying, marking 188 consecutive days at sea (including the end date), which falls just short of the 200-plus days that USS Abraham Lincoln recently logged.

U.S. Sailors signal an MH-60R Sea Hawk attached to Helicopter Maritime Strike Squadron (HSM) 46 to land aboard Nimitz-class aircraft carrier USS George H.W. Bush (CVN 77), Sept. 27, 2026. George H.W. Bush is deployed to the U.S. 5th Fleet area of operations to support maritime security and stability in the Middle East. (U.S. Navy photo)
Flight ops aboard CVN 77. U.S. Navy photo
Arleigh Burke-class guided-missile destroyer USS Mason (DDG 87) sails in U.S. Central Command area of responsibility, Sept. 28, 2026. The George H.W. Bush Carrier Strike Group is deployed to the U.S. 5th Fleet area of operations to support maritime security and stability in the Middle East. (U.S. Navy photo)
USS Mason in CENTCOM. U.S. Navy photo
U.S. Sailors man the rails aboard Arleigh Burke-class guided-missile destroyer USS Delbert D. Black (DDG 119) during a replenishment-at-sea with fleet replenishment oiler USNS John Lewis (T-AO 205), Sept. 24, 2026. Delbert D. Black is deployed to the U.S. 5th Fleet area of operations to support maritime security and stability in the Middle East. (U.S. Navy photo)
USS Delbert D. Black underway. U.S. Navy photo
Arleigh Burke-class guided-missile destroyer USS Donald Cook (DDG 75) sails while an MH-60S Sea Hawk, attached to Helicopter Sea Combat Squadron (HSC) 5, flies alongside Nimitz-class aircraft carrier USS George H.W. Bush (CVN 77), June 18, 2026. USS George H.W. Bush is deployed to the U.S. 5th Fleet area of operations to support maritime security and stability in the Middle East. (U.S. Navy photo)
USS Donald Cook sails while an MH-60S Seahawk flies alongside USS George H.W. Bush in U.S. 5th Fleet. U.S. Navy photo

Abraham Lincoln Homecoming Imminent

The USS Abraham Lincoln reappeared on AIS on October 3, roughly 200 nautical miles southwest of her homeport at Naval Air Station (NAS) North Island in San Diego, after steaming east across the vast Pacific Ocean. However, instead of returning home, Lincoln is holding off the coast of California, disembarking Carrier Air Wing (CVW) 9 and offloading ammunition alongside Lewis and Clark class dry cargo ship USNS Washington Chambers.

Aircraft carrier USS Abraham Lincoln has returned from a 10 month deployment to the Middle East and currently off the coast of California. Source: MarineTraffic; reprinted with permission.
USS Abraham Lincoln’s transit off the coast of California. Source: MarineTraffic/KPLER (Reprinted with permission)

Lincoln is expected to return home on Wednesday or Thursday. The carrier departed San Diego on November 21, 2025, and an arrival this week would close out a total deployment of 321 to 322 days, by our count. That’s just shy of the 326-day record USS Gerald R. Ford set in May, representing the second-longest deployment in the modern carrier era.

The marathon deployment drew scrutiny over the grueling conditions Sailors and Marines experienced aboard. In August, crew families described supply shortages and difficult living arrangements, as TWZ reported at the time. The accounts led to widespread media coverage, which Acting Secretary of the Navy Hung Cao called dishonest while also acknowledging that “a small number of mental health cases were treated with no loss of life, meal plans were adjusted when fresh resupply was unavailable, without a single meal being missed, calls home were limited when the operational threat was too high.” At least eight personnel across the strike group attempted suicide during the cruise, Cao wrote in a letter sent to Sen. Kirsten Gillibrand that was obtained by CNN.

Friends and family welcomed members of Helicopter Maritime Strike Squadron (HSM) 71 back to NAS North Island on Friday, according to a release from DVIDS, the military’s content-sharing portal. A Growler squadron from CVW 9 also recently returned to NAS Whidbey Island in Washington State.

Family and friends welcome home Sailors assigned to Helicopter Maritime Strike Squadron (HSM) 71, assigned to Carrier Air Wing (CVW) 9 embarked aboard Nimitz-class aircraft carrier USS Abraham Lincoln (CVN 72), at Naval Air Station North Island, Calif., following 10 months of operations in the U.S. 5th and 7th Fleet areas of operations. (U.S. Navy photo by Mass Communication Specialist 1st Class Cyrus Roson)
Family and friends welcome HSM 71 home. U.S. Navy photo
U.S. Sailors chock and chain an MH-60R Sea Hawk, assigned to Helicopter Maritime Strike Squadron (HSM) 71, aboard Nimitz-class aircraft carrier USS Abraham Lincoln (CVN 72), Sept. 28, 2026. USS Abraham Lincoln (CVN 72), flagship of the Abraham Lincoln Carrier Strike Group, is underway conducting routine operations in the U.S. 3rd Fleet area of operations, demonstrating the U.S. Navy’s long-term commitment to a free and open Indo-Pacific. (U.S. Navy photo by Mass Communication Specialist Seaman Hannah Tross)
An MH-60R with HSM 71 on USS Abraham Lincoln. U.S. Navy photo

Ronald Reagan Moves From Washington State To San Diego

The latest carrier to rejoin the fleet after completing an extended maintenance availability, USS Ronald Reagan, pulled into San Diego on Monday after departing Bremerton, Washington, on September 30, according to public AIS data. Reagan is currently berthed at Kilo Pier on Naval Air Station North Island, a spot now available after USS Theodore Roosevelt vacated it on September 27.

USS Ronald Reagan (CVN 76) arrives at Naval Air Station North Island, California, Oct. 5, 2026. The Nimitz-class aircraft carrier USS Ronald Reagan is underway conducting routine training in U.S. 3rd Fleet area of operations. (U.S. Navy photo by Mass Communication Specialist 3rd Class Japeth Carter)
USS Ronald Reagan arrives at Naval Air Station North Island in California on October 5, 2026. U.S. Navy photo

Imagery released by the Navy showed the flattop underway conducting routine operations in the U.S. 3rd Fleet area of operations on Sunday, October 4. Reagan reentered the fleet recently after completing a four-day sea trial and shakedown cruise that capped an extended 17-month Drydocking Planned Incremental Availability.

While docked at Puget Sound Naval Shipyard, she received several upgrades and enhancements, including an Unmanned Air Warfare Center (UAWC) to command and control the MQ-25 tanker drone. The MQ-25 will eventually take on the role of refueling carrier-based aircraft, held today by Super Hornets. The new UAWC makes her the second carrier to receive such an upgrade, following USS Theodore Roosevelt. The crew aboard Reagan has conducted pierside and at-sea testing of the new command center.

USS Ronald Reagan (CVN 76) steams in the Pacific Ocean, Oct. 4, 2026. The Nimitz-class aircraft carrier Ronald Reagan is underway conducting routine training in U.S. 3rd Fleet area of operations. (U.S. Navy photo by Mass Communication Specialist 2nd Class Jaron Wills)
USS Ronald Reagan conducts routine ops in the Pacific. U.S. Navy photo
U.S. Navy Sailors conduct security operations on the flight deck of USS Ronald Reagan (CVN 76), while Reagan pulls out of Naval Base Kitsap-Bremerton, Washington, Sept. 30, 2026. The Nimitz-class aircraft carrier USS Ronald Reagan is underway conducting routine training in U.S. 3rd Fleet area of operations (U.S. Navy photo by Mass Communication Specialist Seaman Alexis Bueno)
USS Ronald Reagan departs Bremerton. U.S. Navy photo

Dwight D. Eisenhower Returns To Homeport After Growler Mishap

Following an incident off the east coast that resulted in the loss of an EA-18G Growler electronic attack jet, the USS Dwight D. Eisenhower returned to Naval Station Norfolk on October 5 after an eight-day underway.

Prior to her return, the Navy told us the following, published in full: “The Nimitz-class aircraft carrier USS Dwight D. Eisenhower (CVN 69) will return to Naval Station Norfolk to allow for a comprehensive assessment of the ship’s aircraft launch and recovery equipment following the Sept. 28 aviation mishap. The decision reflects the Navy’s deliberate approach to flight safety and readiness. While the cause of the mishap remains under investigation, Navy technical experts will conduct a thorough assessment of the affected systems and complete any necessary maintenance before flight operations resume. USS Dwight D. Eisenhower remains capable of safely navigating and conducting shipboard operations.”

The transit of carrier USS Dwight D. Eisenhower during a recent underway when a mishap led to the loss of an EA-18G Growler aircraft. Source: MarineTraffic; reprinted with permission
USS Dwight D. Eisenhower’s recent transit off the east coast. Source: MarineTraffic/KPLER (Reprinted with permission)

Eight Sailors were ultimately evaluated by medical personnel aboard the ship. The mishap was reportedly due to a failure of the arresting gear, which catches and stops the forward momentum of aircraft after landing, and the Growler was lost overboard. Both crew members safely ejected and were rescued by MH-60 Seahawk helicopters.

Harry S. Truman Moves Dead Stick For Mid-Life Nuclear Refueling Overhaul

USS Harry S. Truman left Naval Station Norfolk on September 30 and moved “dead stick” into Dry Dock 11 at Huntington Ingalls Industries’ (HII) Newport News Shipbuilding (NNS) facility the same day. The carrier will begin the lengthy process of a mid-life Refueling and Complex Overhaul (RCOH).

The Nimitz-class aircraft carrier USS Harry S. Truman (CVN 75) transits the Elizabeth River while departing Naval Station Norfolk for Newport News Shipbuilding to begin the shipyard phase of its Refueling and Complex Overhaul (RCOH), Sept. 30, 2026. The overhaul will include extensive maintenance and modernization before Truman returns to the fleet for the second half of its planned service life. (U.S. Navy photo by Mass Communication Specialist Seaman Apprentice Stryker Cole)
USS Harry S. Truman transits the Elizabeth River after departing Naval Station Norfolk to begin the shipyard phase of her RCOH. U.S. Navy photo

Truman is the eighth Nimitz class carrier to conduct an RCOH at NNS, according to HII, which won a $5.1 billion contract to complete the work. The overhaul accounts for about one-third of the maintenance and modernization work that a carrier will undergo over a 50-year service life and involves defueling and refueling her nuclear reactors, in addition to upgrades made to the ship’s propulsion plant and combat systems.

“Our team has been diligently working to get ahead on this critical engineering and construction project that will prepare USS Harry S. Truman for the second half of her service life,” Bryan Caccavale, the NNS vice president of program management, said in a statement. “When the ship arrives at NNS, we’ll apply that same diligence to working with our suppliers and Navy partners to ensure a successful recapitalization of CVN 75,” he added.

USS John C. Stennis is also currently completing RCOH at NNS, but there has been no announcement of a return to service, as of publication. Stennis began the overhaul in 2021, and budget documents point to an October 2026 redelivery date, but it’s unclear whether that timeline will hold.

Newest Ford Class Carrier, John F. Kennedy, Transits To Norfolk After Preliminary Acceptance

The Navy took “preliminary acceptance” of the future USS John F. Kennedy from NNS on September 29. The nation’s newest and second Ford class carrier completed acceptance trials in August.

“Achieving preliminary acceptance marks a new phase for the ship and her crew, allowing them to get more water under the keel as they test and train underway,” the Navy’s Program Manager for Gerald R. Ford-Class New Construction, Capt. Mark Johnson, said. “This milestone is a testament to the shared commitment of our sailors and our combined Navy-industry team, who remain laser-focused on completing the final stages of construction and test with precision and efficiency to deliver combat-ready lethality to the fleet.”

Following successful completion of Acceptance Trials in August, the Navy has taken “preliminary acceptance” of the nation’s next aircraft carrier, the future USS John F. Kennedy (CVN 79). Source: HII
The future USS John F. Kennedy departs Newport News Shipbuilding. Photo: HII-NNS

Kennedy is 99% finished, according to the Navy, with formal delivery planned for spring 2027. “All major systems are complete. The shipbuilder is currently completing final ship systems testing, including testing of the remaining four Advanced Weapons Elevators,” the release noted. On the same day as the announcement, September 29, the carrier departed the shipyard, and arrived at her new homeport of Naval Station Norfolk, moored at Pier 11N, on October 2.

Big Deck Fleet At A Glance

Overall, four U.S. carriers are deployed (with one returning home this week), three are working up in various states of readiness, three are in maintenance, one is being used primarily for training before deactivation next year, and another will be delivered in 2027. Two amphibious ready groups are deployed, one is forward-deployed, three are working up or in port, and three are in maintenance.

Note: Positions are general approximations. Non-deployed LHA/LHD amphibious warships are not shown.

Contact the author: ian@twz.com or @ianellisjones

The post Where Are The Aircraft Carriers?: October 6, 2026 appeared first on TWZ.

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Glaring Holes In UK Air Defense Take Center Stage In New “Britannia Shield” Proposal

The United Kingdom could be heading toward its most significant expansion of ground-based air defense in generations, under a plan announced by the Conservative Party. For now, however, with the Conservatives in opposition, the proposed £10 billion (about $13.3 billion) “Britannia Shield” exists only as a policy commitment rather than an approved government program. At the same time, it highlights the seriousness of U.K. military deficiencies in this area, as the threat from the air continues to grow.

The world is becoming more dangerous.

We will always do what is necessary to keep our country safe. pic.twitter.com/Z4EblxrGn7

— Conservatives (@Conservatives) October 6, 2026

Today the @Conservatives are announcing ‘Britannia Shield’ – our £10bn plan to protect the UK from drone & missile attack. This is only possible because @KemiBadenoch is willing to take tough decisions to fund 3% on Defence. pic.twitter.com/tLrF2KSOHw

— James Cartlidge MP 🇬🇧 🇺🇦 (@jcartlidgemp) October 6, 2026

The proposal will move into the U.K. Ministry of Defense acquisition system if the party returns to government following the next general election and then follows through on the funding and procurement decisions required to turn the pledge into an operational capability. The party has proposed spreading the investment over a decade, with an initial capability intended to emerge during the first term of a future Conservative government and the wider network established after that.

Britannia Shield comes with the character of the air threat facing Europe having changed dramatically over the last decade. Russia’s war in Ukraine has demonstrated the scale at which relatively inexpensive drones can be employed alongside cruise and ballistic missiles, while recent fighting in the Middle East has clearly shown the costs involved in maintaining a sophisticated, layered air defense system under sustained attack. At the same time, the threat is no longer confined to weapons fielded by major state militaries. Small, widely available drone technologies can be weaponized with relative ease by non-state actors, providing a cheap and potentially highly scalable means of attack.

Operating in the Red Sea in 2024, the Type 45 destroyer HMS Diamond uses its Sea Viper missile system to shoot down a missile fired by the Iranian-backed Houthis from Yemen. Crown Copyright

For Britain, which has traditionally relied heavily on fighter aircraft, naval air defense, and the protection provided by geography and NATO, it is increasingly doubtful whether those capabilities provide enough coverage for the infrastructure that would be most important to keep functioning during a major conflict.

While a party press release refers to it directly, Conservative leader Kemi Badenoch has made efforts to distinguish Britannia Shield from a British version of Israel’s Iron Dome.

Iron Dome has become one of the best-known elements of Israel’s layered air defense network, having been developed primarily to deal with short-range rockets, artillery, and mortar rounds threatening populated areas. The system has evolved, however, and newer configurations can also engage threats including cruise missiles and drones. Importantly, Israel’s Iron Dome systems protect a country a twelfth of the size of United Kingdom and deal with only a portion of the potential threats in critical areas.

Mention should also be made of the U.S. Golden Dome missile defense initiative, which envisions integrating sensors, interceptors, and other defensive capabilities as part of an enormous architecture with a greater emphasis on protecting the U.S. against a range of aerial and missile threats, up to and including intercontinental ballistic missiles.

Talking to the BBC, Badenoch argued that Britain does not face the same kind of persistent rocket and missile threat as Israel and therefore does not require an equivalent level of coverage. Instead, the Conservative proposal is intended to combine improved radar, command and control, interceptor missiles, and counter-drone capabilities into an integrated network designed around the threats Britain is considered most likely to face.

Britain already has some of the components that such a system could leverage. Royal Navy Type 45 destroyers — when they are available — provide a highly capable long-range air-defense layer through Sea Viper missiles, while the Army’s Sky Sabre system uses CAMM missiles for shorter-range engagements. The RAF provides combat aircraft and airborne surveillance capabilities, and Britain is integrated into NATO’s wider air and missile defense architecture. The problem is that these capabilities were not designed to provide a dense, permanent defensive umbrella over critical infrastructure, and the ground-based component in particular remains relatively limited when compared with the scale of the potential target set. There is also the reality that these assets are required to defend locales far from the British Isles themselves.

Sky Sabre is a point defence and local area defence missile designed to respond to sophisticated missile attacks and has the capability to defend against saturation attacks of supersonic anti-ship cruise missiles, aircraft and other high-performance targets. It does this via multiple channels of fire, providing 360-degree simultaneous coverage and high degrees of manoeuvrability. Displayed during PROJECT HERMOD 2 PROJECT HERMOD 2 is an event run for members of the intelligence and security committee and the House of Commons defence committee. It will showcase the Army Special Operations (rangers), UK stratcom, innovation, and digitisation.
A British Army Sky Sabre battery. Crown Copyright

The government’s own 2025 Strategic Defense Review acknowledged that changing threat environment, allocating up to £1 billion in new funding for homeland air and missile defense and calling for improvements to the United Kingdom’s wider integrated air and missile defense architecture. Britannia Shield would therefore be a much larger political commitment to expanding and integrating capabilities that already exist, while adding new layers intended to deal with the growing drone and missile threat.

The £10 billion figure provides little idea of the scope of capabilities. The scale of the proposed system will determine whether that additional money represents a major expansion or simply the beginning of a much larger requirement.

Gen. Sir Richard Barrons has previously estimated that an entry-level system of the kind outlined could cost around £80 billion over a decade, illustrating how quickly the cost can rise once the requirement expands from protecting selected sites to providing something approaching comprehensive national coverage.

2/ Estimates suggest north of £80bn for the full cost of a perfect system, so we almost certainly need to think differently than a “dome” solution. A layered air defence will include a number of elements, including the ability to deter and strike back at an adversary.

— Greg Bagwell (@gregbagwell) October 6, 2026

Badenoch’s description of the threat instead points toward a system in which Britain would identify the infrastructure and military facilities most important to national resilience and then build increasingly dense layers of protection around them. That would include major airbases, ports, energy infrastructure, communications facilities, and other critical nodes, rather than attempting to create a continuous defensive bubble over the entire country.

RAF No. 617 Squadron F-35B jets at RAF Marham in England. Crown Copyright

Such a system would also have to account for the fact that the location of the launch platform can be as critical as the weapon itself. Badenoch described a scenario in which an adversary could operate in the English Channel to launch drones or missiles against targets in Britain. The resulting reduction in warning time would place greater demands on sensors and command systems, but it would also mean that the defensive problem could begin well before an incoming weapon reached British airspace. Maritime surveillance, intelligence collection, fighter aircraft, and naval forces could all potentially contribute to detecting or disrupting a launch platform before it had the opportunity to fire.

A Russian Kilo class submarine, its accompanying tugboat (center), and the RFA fast fleet tanker Tidesurge (background), as seen from a Merlin helicopter from 814 Naval Air Squadron. The helicopter and RFA tanker shadowed the submarine and tugboat as they sailed westward from the North Sea, through the Strait of Dover and into the English Channel in 2025. Crown Copyright

That broader approach is particularly important because the economics of countering drones are fundamentally different from those associated with conventional air defense targets. A system that responds to inexpensive drones by firing a sophisticated interceptor costing hundreds of thousands or millions of dollars would rapidly become unsustainable during a large attack. Any serious British architecture would therefore need several layers, with electronic warfare, guns, low-cost interceptors, and other counter-drone systems, potentially including directed-energy weapons, dealing with the lower end of the threat wherever possible. Meanwhile, more expensive surface-to-air missiles would be preserved for cruise missiles, aircraft and other targets that cannot be economically engaged by cheaper means.

A British Army Wolfhound armored vehicle, seen here with a mounted portable Laser Directed Energy Weapon (LDEW). This was the first high-powered laser energy weapon to be successfully fired from a British Army combat vehicle. Crown Copyright

The recent situation at RAF Fairford adds another dimension to that problem. The United States recently withdrew a dozen B-1 bombers from the Gloucestershire base amid reported concerns about a possible Iran-backed attack, after U.S. officials said commanders had received new information about a potential plot. British authorities maintained that the base was safe, while British sources reportedly questioned whether Iran could reproduce the kind of complex operation carried out by Ukraine against Russian airfields in 2025. The episode nevertheless demonstrated the degree to which even a major military installation can become a concern when an adversary is believed to be looking for unconventional ways to reach it.

A B-1B Lancer assigned to the 9th Expeditionary Bomb Squadron parks on the flightline at RAF Fairford, United Kingdom, Oct. 26, 2023. Bomber Task Force missions are representative of the U.S. commitment to our Allies and partners and enhance regional security. (U.S. Air Force Photo by Senior Airman Ryan Hayman)
A B-1B Lancer assigned to the 9th Expeditionary Bomb Squadron parks on the flightline at RAF Fairford, United Kingdom, in 2023. U.S. Air Force Photo by Senior Airman Ryan Hayman

That brings Operation Spiderweb into the discussion, although there is no public evidence that Iran is preparing a comparable operation against Britain. Ukraine’s June 2025 attack was prepared over roughly 18 months and involved small drones being moved deep into Russia inside containers carried by trucks before being launched remotely against military airfields. The operation illustrated that once relatively cheap drones have been positioned close to their targets, the defender may have little opportunity to intercept them through traditional long-range air defense means. This is exactly a scenario we have been warning of for many years.

Today, Ukrainian intelligence reportedly launched 117 attack drones from trucks that had been placed near Russian air bases. I tasked several collects this morning via @umbraspace and my first images have already started processing. What a remarkable success in a well-executed… pic.twitter.com/LzXulw8jnK

— Chris Biggers (@CSBiggers) June 2, 2025

For Britannia Shield, that means protecting an airbase such as RAF Fairford cannot simply be a matter of installing missile batteries. Physical security, counter-intelligence, surveillance of access routes, low-level drone detection, electronic warfare and the ability to identify suspicious activity before an attack begins would all become part of the same defensive problem. Hardened infrastructure would also be essential, helping to protect aircraft, fuel, munitions, command facilities and other critical assets from attacks that penetrate the outer layers of the defense. The distinction is increasingly important as military aircraft themselves become more valuable and as relatively inexpensive unmanned systems demonstrate their ability to threaten aircraft on the ground without ever having to penetrate the surrounding air defense network.

The new British proposal also becomes more complicated because its intended coverage extends beyond the British mainland. Badenoch has specifically referred to defending installations in Cyprus and the Falkland Islands, which introduces a very different set of operational and logistical requirements. A network supporting critical infrastructure in Britain can draw on dense communications infrastructure, nearby industrial support and the wider NATO system, whereas a defensive capability at RAF Akrotiri or in the Falklands requires its own radar coverage, launchers, personnel, ammunition stocks, and sustainment arrangements. Extending the same architecture across those locations would therefore consume considerably more resources.

Pictured is a 1435 Flight Typhoon FGR4 pair flying over West Falkland island during a routine training flight. No 1435 Flight with their Typhoon FGR4's are currently based at Mount Pleasant The most recent purpose-built airfield in the RAF, Mount Pleasant was opened in 1985 to establish a fighter and transport presence in the Islands. The RAF provides key elements of the forces that Headquarters British Forces South Atlantic Islands use to ensure the security of the Falklands, the South Sandwich Islands and South Georgia. Not only through the air bridge from RAF Brize Norton to Ascension Island and onwards to the Falkland Islands, but also through deterrence patrols across the immense area between the islands.
A RAF 1435 Flight Typhoon FGR4 pair flying over West Falkland island during a routine training flight. Crown Copyright

A similar problem exists with ammunition stocks. Ukraine has repeatedly demonstrated that sophisticated air defenses can come under sustained pressure during large missile and drone attacks, while Western countries have struggled to replenish some categories of precision-guided weapons at anything approaching wartime consumption rates. A British system that looks impressive on paper but has only a small stockpile of interceptors would provide much less meaningful protection during a prolonged campaign, particularly if an adversary deliberately attempted to exhaust the defenses through repeated attacks using inexpensive drones.

Ukraine also offers lessons for how Britain could organize such a network. Mobile air defense teams, distributed sensors, acoustic detection systems, and digital applications that connect air defense operators with military units and civilian spotters have all become increasingly important in Ukraine, where defenders have had to detect and respond to large numbers of drones and missiles across a wide area. There are echoes here of the distributed air defense networks developed during World War II, when observers, radar operators, fighter controllers, and anti-aircraft units were linked together to provide early warning and direct defensive responses. As in 1940, Britain would need an air defense network that is distributed, mobile, and adaptable to new threats.

A RAF Regiment light anti-aircraft gun team man their Bofors 40mm gun in a rain-sodden emplacement in southeast England, to help defend London from flying bombs in World War II. Crown Copyright

The most revealing details of Britannia Shield are yet to be provided. The number of defended sites, the types and numbers of radars, the number of launchers, the size of interceptor stocks, and the proportion of the budget devoted to counter-drone capabilities all remain unclear for now. The same applies to the money required for training, maintenance, software, communications, and replenishment across the life of the system.

There is also a straightforward political limitation to the proposal. The Conservatives have pledged to invest in Britannia Shield as part of a broader plan to increase defense spending, but that money is not currently sitting in a government procurement account waiting to be spent and defense budgets are increasingly stretched by other big-ticket programs. The Conservatives would first have to return to government, establish the program as a formal requirement, and then make the associated spending and procurement decisions. Even if those steps were taken quickly, the most capable elements of the system would take years to design, procure, integrate, and deploy.

Artists impression of the new DREADNOUGHT CLASS. The Dreadnought class of ballistic submarines for the Royal Navy is now being built. Successor was the name for the programme of delivering these submarines for the Royal Navy until the first boat was named in October 2016. This is the enduring commitment of the Navy's dedication to continuous at sea deterrence (CASD) since April 1969.
A rendering of of the new Dreadnought class of ballistic submarines for the Royal Navy, representing the largest British defense investment of recent years. Crown Copyright

Whether £10 billion would ultimately be sufficient depends on the mission the future government assigns to the system. If Britannia Shield were expected to provide nationwide protection against sustained attacks involving ballistic missiles, cruise missiles, and large numbers of drones, the budget would fall far short, particularly once interceptor stocks and long-term sustainment are included. If it is designed as a layered network protecting a defined group of critical infrastructure sites and military bases, integrated with the RAF, Royal Navy, Army, and NATO systems already in place, the proposal becomes more realistic, but it wouldn’t address higher-end threats, like longer-range ballistic missiles.

That limitation is particularly significant when considering Russia, which remains the most serious military threat to the United Kingdom and its European allies. From what we know so far, Britannia Shield is heavily focused on drones and shorter-range missile threats, but Russia possesses a much broader strike arsenal that includes ballistic missiles, cruise missiles, and hypersonic weapons. A British air defense program that concentrates primarily on the lower and middle tiers of the threat therefore leaves a significant gap at the upper end of the spectrum.

Russian Yars Intercontinental ballistic missiles (ICBM)s travel through central Moscow during a rehearsal for the Victory Day parade where Russia will celebrate the 80th anniversary of the 1945 defeat of Nazi Germany, on May 3, 2025. Russia will mark "Victory Day" on May 9 with a huge military parade of troops and hardware on Red Square, presided over by President Vladimir Putin. (Photo by Alexander NEMENOV / AFP) (Photo by ALEXANDER NEMENOV/AFP via Getty Images)
Russian Yars intercontinental ballistic missiles travel through central Moscow during a rehearsal for the Victory Day parade in 2025. Photo by Alexander NEMENOV / AFP

The United Kingdom is also not considering this problem in isolation. Across Europe, governments are increasingly pursuing multinational efforts to strengthen air and missile defenses, as the return of large-scale state-on-state warfare and the experience of the war in Ukraine have made the vulnerability of European infrastructure and military forces much more tangible. Nearly three decades after the end of the Cold War, ballistic and cruise missile defense has once again become a central European security requirement. Britannia Shield would therefore need to be considered not only as a national counter-drone and air-defense program, but as part of a much broader European effort to rebuild layered air and missile defenses against the full range of modern threats.

The experience of Ukraine and the Middle East suggests that Britain is unlikely to solve this problem simply by buying more surface-to-air missiles. Increasingly, air warfare relies on complex networks that find the attacker, identify the weapon, choose the appropriate response, and undertake this all at a cost that can be sustained throughout a conflict. That network also has to extend beyond the airspace itself, because the threat may involve a launch platform approaching the coast, a drone operator operating near a military installation, or small drones already hidden inside the defender’s security perimeter.

IMAGE: Riflemen from 1st Battalion The Rifles testing the Mossberg 590M Counter SUAS shotgun (foreground) and handheld Counter-Unmanned Aerial System effectors against drones in Sennybridge Training Area (SENTA). On Friday 10 July 2026, Soldiers from 1st Battalion The Rifles conducted an experimental Counter-Unmanned Aerial System (C-UAS) Advanced Combat Marksmanship Test (ACMT) on Sennybridge. The exercise focussed on the preparation of troops to counter emerging aerial threats effectively, also testing new ammunition types with integrated support from various specialist UAS teams. In addition, there was close-range engagement of First-Person View (FPV) drones using shotguns, requiring hits on three out of five targets at 25 metres.
Last line of defense: British Army riflemen testing a Mossberg 590M Counter SUAS shotgun (foreground) and handheld Counter-Unmanned Aerial System effectors against drones. Crown Copyright

With their proposed reorientation of Britain’s air defense priorities, the Conservatives have put a financial value and a recognizable name around a capability gap that has become increasingly difficult to ignore. If they return to government, there will be many tougher questions to address, including which sites should receive protection, how many layers are required, how much ammunition must be held in reserve, and how the system can be sustained on a wartime footing.

The recent concerns surrounding RAF Fairford, together with the lessons of Operation Spiderweb, underline why that question is becoming more complicated. The next serious attack on a British military installation may not arrive as a large formation of aircraft or a visible wave of missiles crossing the Channel. It could involve a mixture of long-range weapons, cheap drones, electronic warfare, and hybrid warfare activity taking place much closer to the target. A future Britannia Shield would have to be designed around that reality, and would come with a price tag to match.

Contact the author: thomas@thewarzone.com

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