The first F-15EX Eagle II destined for permanent assignment at Kadena Air Base in Okinawa departed Boeing’s St. Louis, Missouri, facility on August 28, 2026. The aircraft left St. Louis for the 142nd Wing at Portland Air National Guard Base, Oregon, where it will undergo final staging and integration preparations before its eventual deployment to the sprawling Okinawa installation it will call home. The Oregon unit is acting as a coordination and preperation unit for the 18th Wing, a function you can read more about in our interview with the wing’s commander.

This departure represents a critical, long-awaited milestone for the 18th Wing, which has been working toward the permanent stationing of the service’s most advanced Eagle variant to replace its now-withdrawn F-15C/D fleet. The arrival of the F-15EX in Japan, expected to begin in fiscal year 2027, which begins on October 1, 2026, will be a central pillar in the Air Force’s modernization of tactical airpower in the Indo-Pacific region.

EXciting progress for F-15EX!

We've delivered the 22nd F-15EX to the @usairforce. The aircraft will be the first F-15EX destined for @KadenaAirBase in Japan. pic.twitter.com/RlrTKuCCFl

— Boeing Defense (@BoeingDefense) September 3, 2026

“This is an important next step toward bringing the F-15EX home to Kadena,” said Brig. Gen. John Gallemore, 18th Wing commander, in an Air Force release. “Our team is ready to welcome the F-15EX, and this is another milestone that brings us closer to putting this capability in the hands of the airmen who will fly, maintain and employ it from Japan.”

The first F-15EX for Kadena’s 18th Wing, serial 22-0022, was noted flying test sorties from St. Louis in early August, initially in primer paint. By the middle of the month its was flying with its full livery, including the famous “ZZ” tail code.

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The F-15EX is a significant jump in capability over the legacy Eagles. With modernized avionics, flight controls, an expanded electronic warfare suite, and increased weapons carriage — as well as potentially new and longer-reaching weapons — the jet is well-suited to operating in the vast Western Pacific. As Kadena prepares for the permanent arrival, the 18th Wing plans to integrate the EX with regional allies, including the Japan Air Self-Defense Force, building upon existing bilateral training exercises.

Two active-duty squadrons of F-15EXs are set to be established at Kadena, taking the place of units previously based there that had flown F-15Cs. The Air Force has been deploying F-15Es, F-22s and other fighters to the base on a rotational basis to fill the gap in the meantime.

The F-15EX will give U.S. forces in the Indo-Pacific a high-capacity platform that complements the fifth-generation F-22 and F-35. With its ability to carry large air-to-air and air-to-surface payloads, the Eagle II can serve as a long-range “missile truck,” extending the reach and firepower of stealth aircraft operating closer to contested airspace. Its open-architecture systems also allow it to incorporate new sensors, weapons, and electronic warfare capabilities more readily than the aging F-15C/D fleet.

The aircraft’s value is also tied to its role in networked operations. Exercises such as Valiant Shield have demonstrated how the F-15EX can work with uncrewed aircraft like the  MQ-28 Ghost Bat, pointing toward mixed formations in which crewed fighters provide weapons, sensing, and command-and-control capacity for autonomous wingmen. Operating from strategic locations such as Kadena, the Eagle II could help the Air Force generate more combat power across the vast Pacific while reducing the burden on its limited number of stealth fighters.

Kadena will become the second Air Force location with combat-coded F-15EX aircraft, following the Oregon Air National Guard’s 142nd Wing.

The Air Force has previously announced plans to stand up National Guard F-15EX squadrons in California, Louisiana, and Michigan. Most recently, the Air Force announced plans to put F-15EX fighters at Seymour Johnson Air Force Base, North Carolina, to replace older F-15E Strike Eagle jets that will move to Whiteman Air Force Base, Missouri.

While the movement of this first Kadena-bound F-15EX is a positive step, the wider Eagle II program is currently navigating some issues. According to a new Pentagon selected acquisition report released in August, the Air Force’s decision to aggressively expand its F-15EX fleet from 129 to 267 jets — intended to recapitalize the older F-15E force — has introduced substantial cost and schedule uncertainties that officials are now scrambling to manage.

The report warns that the extended acquisition strategy, which shifted from eight production lots to 12, will require Boeing to execute a “major technical refresh” to combat diminishing manufacturing sources and material shortages. As systems like the radar, mission computer, and engines face potential obsolescence over the now-lengthened production timeline, the service faces what the report characterizes as a “significant redesign effort.” Program managers are planning to mitigate these risks by integrating upgrades through operational flight program releases scheduled between 2031 and 2035, a strategy they describe as a “structured, risk-reduced pathway” to avoid production line gaps.

Compounding these technical challenges are tangible production delays, largely stemming from a labor strike at the St. Louis plant from August to November 2025. The report notes that these are “unrecoverable delays,” forcing a cascading schedule slip. While Boeing was contracted to deliver all 12 jets from Lot 3 by early 2026, the company will only be able to field half of those by the end of the year. This has directly impacted the timeline for the Kadena deployment, which was originally envisioned for earlier in 2026, and has left the Air Force relying on “bridging strategies” and rotations to cover operational requirements until the Eagle IIs can fully stand up in Okinawa.

The Pentagon is now moving toward an aggressive production ramp-up, tasking Boeing to hit a rate of two jets per month. Keeping the F-15EX schedule on track will be a challenge, however, requiring successfully navigating ongoing parts shortages for critical systems, all while balancing the needs of foreign military sales customers who are also integrated into the supply chain.

For the 18th Wing, the arrival of the first F-15EX will bring a major advance in capabilities in a part of the world that needs them badly. At the same time, the program’s overall trajectory suggests that the wider transition to the new Eagle will come with some complex logistical and industrial challenges.

Contact the author: thomas@thewarzone.com

The post First USAF F-15EX To Be Based In Japan Departs Boeing’s St. Louis Plant appeared first on TWZ.

The United Kingdom is moving toward adding a flying-boom aerial refueling capability to the Royal Air Force (RAF), a requirement being driven in large part by the future Tempest combat jet, being developed under the Global Combat Air Program (GCAP) initiative.

In a written response to opposition MP Ben Obese-Jecty, U.K. Defense Minister Luke Pollard confirmed that the RAF’s existing probe-and-drogue aerial refueling capability will eventually be complemented by a boom system. The move would give Britain a sovereign capability to refuel aircraft equipped with the U.S.-standard boom receptacle, including the Tempest, while also improving interoperability with other NATO and allied air forces.

“The Royal Air Force currently operates a probe and drogue air-to-air refueling system and will complement this with the development of a boom system,” Pollard said. “This will ensure we have a sovereign air-to-air refueling capability for the future Royal Air Force fleet that enhances interoperability with NATO allies and partners.”

For the first time we have a Minister confirming the Boom is coming to Royal Air Force tankers, although the when and the how currently remain very much up in the air.

Still significant to have it through government voices and not just through the RAF itself. pic.twitter.com/esRN7NVoPy

— Gabriele Molinelli (@Gabriel64869839) September 2, 2026

The decision follows comments by a senior RAF official in July indicating that the service was already examining how to meet the requirement.

“We currently do not have boom [-equipped tankers] in the UK. We have a requirement for a boom from GCAP, so we have to resolve that requirement and that is what we are now looking at,” the official said at the Air Power Association Global Air and Space Chiefs’ Conference in London, according to Janes. “I [am] certain that at some point we are going to have to work out how we deliver a sovereign boom capability for our own combat aircraft.”

The requirement is particularly significant because GCAP’s Tempest is being designed with a fuselage-mounted receptacle for boom refueling. Unlike the probe-and-drogue arrangement used by the RAF’s existing Voyager tankers, a flying boom uses a rigid, telescoping refueling tube that is maneuvered by an operator aboard the tanker into the receiver aircraft’s receptacle.

One of the major advantages of the boom system is its higher fuel-transfer rate. That makes it especially useful for large aircraft and combat aircraft that need to take on substantial quantities of fuel quickly, reducing the time spent on the tanker.

Tempest is not, however, the only RAF aircraft that depends on the boom standard. The RAF already operates several boom-equipped receiver aircraft, including P-8A Poseidon maritime patrol aircraft, RC-135W Rivet Joint intelligence, surveillance, and reconnaissance aircraft, and C-17A Globemaster III airlifters. The E-7A Wedgetail airborne early warning aircraft also uses a boom receptacle, while the forthcoming RAF F-35A fleet will add another major boom receiver to the service.

Currently, the RAF has no boom-equipped tanker to support them.

Its principal tanker fleet consists of Airbus A330 Multi-Role Tanker Transport (MRTT) Voyager aircraft operated by the AirTanker consortium and leased to the RAF under a private finance initiative. Unlike many A330 MRTT operators around the world, which acquired the aircraft with a flying boom, the British Voyagers were configured exclusively around hose-and-drogue refueling.

The Voyager K2 is equipped with two wing-mounted Cobham 905E hose-and-drogue refueling units. The K3 adds a third refueling point in the form of a Cobham 805E fuselage refueling unit, or FRU, located at the rear of the aircraft. The latter provides a higher fuel-transfer rate than the wing-mounted units.

Since the fuel is stored in existing tanks, the Voyager’s cabin is still available to accommodate up to 291 passengers and the cargo hold for freight. One Voyager, serial ZZ336, nicknamed Vespina, is modified for long-range VIP transport but still functions as a fully capable tanker.

A video showing Voyager ZZ336 refueling RAF and German Eurofighter Typhoons during the enhanced Air Policing mission in Romania:

Up to 14 Voyagers are available to the RAF under the current arrangement.

The future of those aircraft is now one of the key questions surrounding Britain’s planned boom capability.

One possibility would be to modify some of the existing Voyagers, installing a boom system in the rear fuselage. The baseline Airbus’ A330 MRTT design already incorporates a provision for a flying boom. At the time the United Kingdom ordered its Voyagers, boom refueling was not considered essential, so the capability was deleted to save weight, complexity, and cost — a decision which was to prove very shortsighted.

Such a conversion, however, would involve engineering, certification, ownership, and contractual considerations, particularly given that the RAF does not directly own the Voyager fleet.

Britain could also decide that modifying the existing aircraft is not worthwhile. The current Voyager private-finance arrangement runs until 2035, by which point the airframes will be considerably older. Rather than investing heavily in aircraft approaching the end of their contracted service period, the government could opt to acquire new A330 MRTTs or another tanker type equipped with a boom from the outset.

Another, more remote possibility could involve a podded boom arrangement, a concept that has been around for a while now, but which is gaining traction with the U.S. Air Force as it weighs options for future tanker capabilities. 

It remains unclear, however, whether a podded boom would offer the performance and integration characteristics required for Tempest and the RAF’s wider fleet. There is also a question about what platform it could be installed on.

At the same time, TWZ has previously highlighted how drones equipped with buddy stores could operate in a hub-and-spoke model, ferrying fuel from tankers positioned outside the threat envelope to aircraft operating at the tactical edge. This could be another option that might gain traction as the U.K. Ministry of Defense increasingly looks to unlock the potential of uncrewed capabilities, but must also be considered less likely, especially as a primary solution.

There is also a potential requirement for the tankers themselves to be capable of receiving fuel. Equipping a tanker with a receiver system would allow tanker-to-tanker refueling, extending the flexibility and reach of the RAF’s future air-to-air refueling force during long-range operations. Other A330 MRTT operators already benefit from this feature.

While Tempest is providing the immediate catalyst, a refueling boom capability would also close an increasingly conspicuous gap in the RAF’s tanker force. The service is acquiring and operating an increasing number of aircraft built around the boom standard while relying on a tanker fleet configured around the alternative hose-and-drogue system.

Whether Britain modifies its existing Voyagers, replaces them, or adopts another solution entirely could become an important part of the RAF’s long-term force structure as the Tempest program advances.

Contact the author: thomas@thewarzone.com

The post UK Government Commits To Boom Refueling For RAF Tankers appeared first on TWZ.

Ukrainian F-16 pilots are facing such a severe shortage of air-to-air missiles that some daytime sorties have seen them rely solely on the fighters’ internal guns to engage Russian aerial threats, according to a journalist who recently spoke with a senior Ukrainian Air Force commander. Meanwhile, the lack of air-to-air missiles means that the available weapons stocks are now being rationed.

The disclosure provides a remarkable glimpse into the day-to-day reality of Ukraine’s F-16 operations. While the aircraft may be available, the pilots may be ready, and Russian drones and cruise missiles may be approaching, there may simply not be enough missiles on hand to arm the jets.

According to Newsmax journalist Shelby Wilder, the Ukrainian Air Force can find itself monitoring missile shipments as they cross the country’s border, with personnel counting not just the hours but the minutes until those weapons reach the aircraft. The concern is whether the missiles will arrive in time for the next major Russian aerial attack.

The Ukrainian commander, who identified himself by the callsign “Phantom” and as commander of the country’s 107th Wing, confirmed the underlying problem when asked directly whether Ukraine was severely short of missiles for its F-16s.

“Yes, that’s true. Any aircraft without weapons is … useless,” Phantom said.

That blunt assessment is particularly striking given what Ukraine is asking its F-16s to do, and the relentless nature of Russian bombardments against Ukrainian cities and infrastructure.

The moment when a Ukrainian F-16 fighter jet shot down a Russian Kh-101 cruise missile at extremely low altitude pic.twitter.com/7zVujRkYaG

— MilitaryNewsUA (@front_ukrainian) June 1, 2026

The fighters have become an important part of Ukraine’s layered air defense network, hunting Russian drones and cruise missiles while also providing a potential counter to Russian combat aircraft, and conducting air-to-ground sorties. Ukraine has operated the F-16 since the summer of 2024.

“We are focusing on defending our skies against Russian unmanned drones to protect our infrastructure inside the country,” Phantom said. “Our target priority is cruise missiles.”

Destroying as many incoming threats as possible before they reach Ukrainian cities and infrastructure requires missiles, with the F-16 primarily armed with the AIM-120 Advanced Medium-Range Air-to-Air Missile (AMRAAM) and the shorter-range AIM-9 Sidewinder.

According to the new disclosure, those missiles have become a commodity whose availability can determine how a sortie is flown.

The F-16 carries an M61A1 Vulcan 20mm rotary cannon, but using the gun against an aerial target is fundamentally different from engaging it with a missile, and comes with its own risks, as we have explored before. This tactic is especially hazardous when going after small targets and especially slow ones, and it becomes even more dangerous at night.

Ukraine has already demonstrated that its F-16s can use their guns in combat. In May 2025, the Ukrainian Air Force said an F-16 pilot had destroyed three aerial targets and was engaging a fourth with the aircraft cannon before an emergency forced him to eject.

One air-to-air weapon not mentioned by Phantom is the laser-guided 70mm Advanced Precision Kill Weapon System II (APKWS II) rocket, now apparently also part of the arsenal. These rockets would offer the Ukrainian Air Force an extremely valuable, lower-cost option for engaging drones and subsonic cruise missiles. 

Regardless, Phantom specifically called for additional air-to-air missiles, as well as interceptors for ground-based Patriot batteries.

“We require more means of protection, such as Patriot missiles and air-to-air missiles, AIM-9s or AIM-120s to our fleet,” he said.

Phantom’s message is that simply delivering more aircraft is not enough. Ukraine needs a sustainable weapons pipeline to keep those aircraft combat-effective.

Ukrainian Air Force F-16AM Fighting Falcon departing Belgium after receiving depot-level maintenance earlier this year. pic.twitter.com/Hy35iUZd8P

— OSINTtechnical (@Osinttechnical) August 28, 2026

This is increasingly becoming a wider problem across Ukraine’s air defense network. Patriot interceptors have been heavily consumed, with relatively few replacement missiles now trickling in, leaving Ukraine with limited ability to defend against ballistic missiles in particular. The strain is now spilling into the lower tiers, including the air-to-air missiles carried by F-16s. Ukraine’s continued consumption of interceptors is a major driver, but it is competing with the enormous demand generated by ongoing wars in the Middle East and a broader surge in demand for advanced air defense weapons around the world. With production struggling to keep pace, scarce interceptors are effectively being rationed across an increasingly crowded global battlefield.

“At least we need to try to increase the production, or at least to allow Ukraine to localize the production in Ukraine or other European countries,” he said.

That proposal reflects the fundamental vulnerability of a relatively small fleet operating in a high-intensity air war. Every missile fired at a Russian cruise missile or drone is one less available for the next engagement. A finite inventory therefore has to cover both routine air-defense missions and the possibility of much larger Russian attacks. At the same time, both the AIM-9 and especially the AIM-120 are used for Ukrainian ground-based air defenses too. The AMRAAM, in particular, is the effector for the NASAMS, which protects Kyiv, and other key objectives against cruise missiles and drones.

The problem becomes even more acute because Ukraine cannot know precisely when the next major Russian strike will arrive.

That is why, according to Wilder’s account, the arrival of missile shipments is being followed with extraordinary urgency.

At the same time, Phantom welcomed the major technological leap that the F-16 represents over the Soviet-designed MiG-29s and Su-27s that formed the backbone of Ukraine’s fighter force.

“The F-16s in comparison with the legacy aircraft like MiG-29 or Su-27? This is kind of like a new technology,” Phantom said.

But sophisticated aircraft are only as useful as the weapons available to them.

Ukrainian F-16s have reportedly destroyed huge numbers of Russian drones and cruise missiles, and in July a Ukrainian F-16 was publicly identified by the U.S. Joint Chiefs chairman as having shot down a Russian fighter.

CONFIRMED!
On July 8, 2026, a Russian Su-35 multi-role fighter was shot down on the eastern sector!

Glory to Ukraine!
Together to victory! pic.twitter.com/r8S9fgQaC5

— Ukrainian Air Force (@KpsZSU) July 8, 2026

Phantom also asked Ukraine’s Western partners to think beyond individual weapons transfers and toward production capacity.

He also urged the United States and European countries to do more to prevent Russia from acquiring components used in its own missile production through third party countries.

“We need to make as much as we can to stop providing the parts, most technological parts to Russians, bypassing the direct sales, of course, through the third party,” he said.

Phantom argued that Russia continues to obtain sophisticated components through intermediaries and even ostensibly civilian products.

“It would not be a surprise that Russians [are] using the washing machine that they’re buying from the third party to use those smart details for building missiles,” he said.

His recommendation is tighter sanctions and enforcement designed to cut off Russia’s access to those components.

“Important is to sanction to stop Russia from being able to have access to those parts,” he said.

That, combined with missile shortages, could become an even bigger problem when Russia conducts another major aerial campaign against Ukraine, particularly as Moscow traditionally intensifies attacks against the country’s energy infrastructure during the winter months.

Contact the author: thomas@thewarzone.com

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