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What do North Korea’s sub missile tests really prove?

North Korea’s recent underwater launch of strategic cruise missiles underscores its accelerating drive to field a survivable, sea-based nuclear deterrent, even as significant engineering hurdles and platform limitations continue to constrain its naval ambitions. North Korea test-fired two types of submarine-launched strategic cruise missiles into the Sea of Japan, marking its first public underwater cruise […]

The post What do North Korea’s sub missile tests really prove? appeared first on Asia Times.

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North Korea’s ‘Hunchback’ Submarine Makes First At-Sea Appearance For Missile Tests

North Korea says it has test-fired two types of submarine-launched strategic cruise missiles off its east coast, in what appears to be the first time its bizarre Hero Kim Kun Ok submarine has been seen at sea in a publicized manner. If the vessel truly was the launch platform, the tests would mark its first confirmed weapons trials and a potential step toward operational service. Unveiled with considerable fanfare in 2023, the Hero Kim Kun Ok has been billed by Pyongyang as a centerpiece of its future nuclear-armed navy, but its operational status and actual capabilities have remained unclear.

The launches took place Wednesday, October 14, with state media Korean Central News Agency (KCNA) reporting the activity earlier today. North Korea said the tests were intended to assess the readiness of its underwater combat systems, improve the Navy’s ability to execute strategic missions, and demonstrate the reliability of its deterrent. Along with imagery of the cruise missiles, KCNA released one photo of the Hero Kim Kun Ok underway, which you can see at the top of this story.

North Korea says it has test-fired two types of submarine-launched strategic cruise missiles off its east coast, in what could be a significant step toward bringing a larger submarine into service. If the launch platform was the Hero Kim Kun Ok, as imagery assessments cited by outside analysts suggest, the tests would mark the first publicly reported weapons trials from a vessel Pyongyang has portrayed as central to its future nuclear-armed navy.
The launch of a cruise missile, apparently from a vertical launch tube. North Korean state media North Korean state media
Submerged launch of one of the North Korean cruise missiles. North Korean state media

KCNA did not otherwise identify the submarine involved or disclose the missiles’ ranges, flight paths, or performance. South Korea’s Joint Chiefs of Staff (JCS) said it had detected and tracked the launches from before firing through the cruise and terminal phases. A JCS spokesperson said one missile type was launched from a vertical launch system and another from a torpedo tube. This would match the imagery we are seeing, it would also match the Hero Kim Kun Ok’s unique capabilities. The South Korean military assessed that the launches came from a submarine but did not initially identify the vessel publicly.

There remains a possibility that the 3,000-ton-class Hero Kim Kun Ok was not actually involved in launching the missiles. North Korea has long used underwater platforms for test missile launches and has paired these with images of an actual submarine for propaganda purposes. However, the JCS confirming they came from a submarine would lend additional credence to the possibility Hero Kim Kun Ok did indeed launch the missiles. If this is the case, it would indicate that North Korea has begun validating weapons systems aboard the submarine ahead of deployment. At the very least, we can confirm that the Hero Kim Kun Ok is now sailing, although South Korean and U.S. intelligence would be acutely aware of its movements and it could have been in at-sea testing for years now, we just don’t know.

North Korea unveiled the submarine in September 2023, describing it as its first “tactical nuclear attack submarine” and one of the Navy’s core offensive platforms. At the launching ceremony, North Korean leader Kim Jong Un was quoted as saying that arming the Navy with nuclear weapons “brooks no further delay.”

The North Korean diesel-electric submarine Hero Kim Kun Ok, which has the hull number 841. North Korean state media

Nevertheless, many questions remain about the submarine’s design and operational prospects. Overall, it remains a heavily modified derivative of a Cold War-era Romeo class diesel-electric submarine — nearly an antique by today’s standards — rather than a purpose-built guided missile submarine. Previous imagery shows 10 missile launch tubes concealed in the prominent ‘turtle back’ aft of the sail, in addition to torpedo tubes, although the precise configuration, usable capacity, and operational status of those systems remain uncertain.

The absence of publicly reported weapons tests from the vessel over the following years raised questions about its development. Analyst Shin Jong-woo of South Korea’s Defense and Security Forum told Reuters that the latest launches suggested combat-system testing for operational deployment was underway. He also suggested that North Korea may have resolved technical problems and could also test a submarine-launched ballistic missile (SLBM) before the vessel enters service. North Korea has previously presented SLBMs of increasing size, but has lacked a suitable submarine to launch them from.

The North Korean diesel-electric submarine Hero Kim Kun Ok during its launch. North Korean state media

Missile launches while the submarine is submerged represent a more demanding and operationally relevant capability than firing from the surface.

At the same time, a missile launch of any kind demonstrates only part of the capability required for a submarine like this to be effective at all. An operational submarine must also be able to deploy reliably, remain sufficiently difficult to detect, maintain its weapons, and execute missions under realistic conditions.

A vertical launch system (VLS) can provide dedicated capacity for certain missile types — potentially much larger ones — and may enable faster launches or larger salvos than a configuration relying exclusively on torpedo tubes. Torpedo tubes offer an alternative launch method, but with different constraints on weapon dimensions, handling, and firing procedures.

The forward four tubes are larger than the rear six on the submarine’s ‘turtle back.’ This would allow the boat to carry multiple types of missiles, possibly including a mix of short-range and longer-range submarine-launched ballistic missiles (SLBMs) and submarine-launched cruise missiles (SLCMs).

A North Korean cruise missile in flight after submerged launch. North Korean state media

Testing both systems would be consistent with an effort to validate multiple elements of the submarine’s weapons architecture.

North Korea has pursued submarine-launched missiles for years. In March 2023, it reported a submarine-launched cruise missile test from the older 8.24 Yongung submarine. In January 2024, Pyongyang said it had fired Pulhwasal-3-31 strategic cruise missiles from that same vessel. The earlier sub is in the 2,000-ton-class and is understood to have only one or two vertical launch tubes.

North Korea’s description of the weapons as “strategic” cruise missiles should also be treated cautiously. North Korea’s long-range cruise missile program is well established and a nuclear payload is a major part of its ambitions, but how mature or reliable a nuclear warhead is for this application at this time isn’t clear. Regardless, ground, surface, and now subsurface-launched cruise missiles are a key part of North Korea’s broader deterrent architecture.

According to reports, Wednesday’s activity was the first publicly reported underwater North Korean missile-testing event since the January 2024 launch.

Compared to the 8.24 Yongung submarine, the Hero Kim Kun Ok has a larger hull and additional vertical launch tubes, but it still uses very dated diesel-electric propulsion, which presents hugely different endurance, acoustic, and operating constraints compared with nuclear propulsion or even modern diesel-electric submarine capabilities.

As to the expectation that Pyongyang may test an SLBM from the submarine before deployment, this would be a likely milestone toward North Korea fielding a credible sea-based nuclear deterrent.

North Korean SLBMs identified as the Pukguksong-5 on parade in January 2021. North Korean state media

North Korea is also pursuing a separate nuclear-powered submarine project, unveiled as under construction in March 2025. Its completion and operational timeline remain uncertain. Nuclear propulsion is a much bigger challenge, but if perfected, such a boat would be of considerably greater value, especially as a second-strike capability.

SEOUL, SOUTH KOREA - 2025/12/25: People seen looking at a 24-hour Yonhap news TV broadcast at Seoul Railway Station showing news broadcast that shows North Korean leader Kim Jong Un veiling manufacturing site of an 8,700-tonnage nuclear-powered strategic guided missile submarine at an undisclosed location. North Korean leader Kim Jong Un has said South Korea's plan to build nuclear-powered submarines will "worsen the instability" in the region, calling South Korea's move a threat to the North's national security, according to state media on December 25. North Korean leader Kim Jong Un made the remarks during an on-site inspection of an 8,700-ton nuclear-powered strategic guided missile submarine under construction, the Korean Central News Agency (KCNA) said. (Photo by Kim Jae-Hwan/SOPA Images/LightRocket via Getty Images)
People seen looking at a TV broadcast at Seoul Railway Station showing North Korean leader Kim Jong Un unveiling the manufacturing site for a future nuclear-powered missile submarine at an undisclosed location. Photo by Kim Jae-Hwan/SOPA Images/LightRocket via Getty Images SOPA Images

The latest submarine tests come amid a broader series of North Korean weapons demonstrations, including reported hypersonic missile tests on September 20 and October 3, as well as tactical ballistic missile launches earlier in October.

The sequence is consistent with Pyongyang’s effort to diversify its delivery systems and complicate military planning for South Korea, the United States, and Japan.

A satellite image of the Pongdae Submarine Factory on the northeast coast of North Korea, the center of its submarine development activities. Google Earth

The activity also carries a diplomatic message. North Korea has repeatedly insisted that it will not abandon its nuclear weapons while the United States maintains what Pyongyang calls a hostile policy. It has also rejected the suggestion that adjustments to U.S.-South Korean military exercises would be sufficient to change the underlying relationship.

The tests also follow North Korea’s rejection of an apparent diplomatic opening from U.S. President Donald Trump after Washington sought to reduce tensions surrounding a U.S.-South Korean military exercise.

Kim touring the Sinpo submarine yards back in 2019, the first time we got a glimpse of the future Hero Kim Kun Ok. North Korean state media

A submarine able to launch missiles from less predictable locations complicates defensive planning for South Korea and the United States. The challenge extends beyond intercepting missiles after launch to detecting and tracking the submarine before it reaches a potential firing position. Even a partially capable vessel places additional demands on potential adversaries.

Were things to ‘go hot’ on the Korean Peninsula, any submarine capable of carrying strategic weapons would be at the top of the targeting list for Pyongyang’s adversaries. A submarine based on the archaic Romeo class design would be fairly easy to track from the time it leaves its berth. This is especially the case bearing in mind the sophisticated nature of South Korea’s anti-submarine capabilities.

Future submarines will become increasingly more challenging, however. That problem could intensify if future North Korean boats make more use of Russian assistance in developing their capabilities. Submarine technology is supposedly part of the payment to Pyongyang for its help in the war in Ukraine. This could become a much larger problem, even if Moscow were to provide North Korea with advanced Kilo class boats, for example.

For now, provided that the Hero Kim Kun Ok launched the missiles, which seems most likely, this would indicate that North Korea is advancing weapons integration aboard a submarine intended to expand its offensive naval capabilities. The fact that the Hero Kim Kun Ok is now at sea also signals progress toward deployment.

Whatever the ultimate operational effectiveness of the Hero Kim Kun Ok and its emerging missile armament, Pyongyang continues to demonstrate incremental improvements to its submarine forces.

Contact the author: thomas@thewarzone.com

The post North Korea’s ‘Hunchback’ Submarine Makes First At-Sea Appearance For Missile Tests appeared first on TWZ.

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Taliban and North Korea rubbed shoulders at Russia’s war games—one fuels Moscow’s war, the other needs its help

Members of Afghanistan's Ministry of Defense delegation at Russia's Center-2026 strategic military exercises.

Defense officials from Taliban-controlled Afghanistan spoke with North Korean representatives at Russia's Center-2026 strategic exercises, Afghanistan's Defense Ministry reported. So far, neither Moscow nor Pyongyang has confirmed any meeting, and Kabul disclosed no details of the talks or any agreement.

Since invading Ukraine, Russia has gathered a circle of sanctioned governments it both leans on for its war and props up in return—a trade that runs in opposite directions depending on the partner. Each new tie leaves one more isolated state with a stake in the war grinding on.

Observers among dozens

The exercises ran from 28 September to 3 October in Russia's Chelyabinsk Oblast. The Taliban attended as observers for the first time since it retook power in 2021, Militarnyi reported, one of dozens of foreign delegations present.

3D model of a Russian Geran-4 jet-powered attack drone, shown from above with its tracker and navigation unit listed beside it.
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Mawlawi Nasibullah Madani, commander of the Abdullah bin Masoud Joint Combat Training Command, led the Taliban delegation. The ministry said its officers held discussions with North Korea's military attaché and with officials from China, India, Vietnam, and other countries on bilateral ties and military cooperation. The delegation also toured an exhibition featuring heavy weapons, drones, long-range missiles, and robotic systems.

Moscow's expanding military network

On 27 May 2026, Russia and the Taliban signed a military-technical cooperation agreement. Russia's special envoy for Afghanistan, Zamir Kabulov, claimed the deal is a practical framework focused on repairing Soviet- and Russian-made equipment the Taliban already holds. Russia remains the only country to formally recognize the Taliban government, a step it took in July 2025.

North Korea signed a comprehensive strategic partnership treaty with Russia in June 2024 that includes a mutual defense clause. Pyongyang has since sent an estimated 14,000 troops to Russia's Kursk Oblast. In April, Ukraine's Coordination Headquarters for the Treatment of Prisoners of War put North Korea's losses at 7,058, including 2,251 killed.

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To keep the peace, South Korea’s Lee must prepare for war

When a South Korean soldier stepped on a land mine in the Demilitarized Zone (DMZ) on September 21, it might have been taken as a grim reminder of a war that never formally ended. Instead, the explosion has revealed something more unsettling: the Korean Peninsula’s old security order is shifting, even as Seoul tries to […]

The post To keep the peace, South Korea’s Lee must prepare for war appeared first on Asia Times.

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A Historic Event: Russia and the DPRK Open the First Automobile Bridge Across the Tumen River

On September 7, 2026, a landmark event in the history of bilateral relations between Russia and the DPRK took place: the first automobile bridge across the border Tumen River was opened, linking the Russian settlement of Khasan with the North Korean city of Rason. Opening Ceremony The implementation of this project the necessity of which […]
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The Russia-North Korea Strategic Axis: Building a New Eurasian Security Partnership

The Russia-North Korea strategic partnership is reshaping Northeast Asian security through growing political, military and economic cooperation, while also highlighting Russia’s expanding strategic role and the emergence of a more multipolar Eurasian security environment. 7th September 2026 marked the opening of the first dedicated road bridge between Russia and North Korea across the Tumen River. […]
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North Korea Tests New Hwasong-11Ma Hypersonic Missile

North Korea has released imagery of what appears to be a flight test of an updated version of its Hwasong-11Ma hypersonic missile, nearly a year after the weapon first appeared publicly at a military technology exhibition in Pyongyang.

Launch of a Hwasong-11Ma-1 missile from the test facility in Anbyon County, south of Wonsan. North Korean State Media

The September 20 test involved a short-range ballistic missile (SRBM) booster fitted with a hypersonic glide vehicle, according to photographs released by North Korean state media. A display screen visible in the imagery identifies the weapon as the Hwasongpho-11Ma-1, or Hwasong-11E-1 in the equivalent English-language designation.

The test was conducted from the east coast near Anbyon County, south of Wonsan, an area North Korea has repeatedly used for missile testing. The launch site allows missiles to be fired eastward over the Sea of Japan, providing a relatively controlled area for testing short- and medium-range systems.

Another two views of the launch of the Hwasong-11Ma-1 missile. North Korean State Media

South Korean and Japanese authorities say they detected two launches on September 20, with the first occurring at approximately 3:00 p.m. local time and the second several hours later.

North Korean photographs show the missile being launched from a coastal location, with Kim Jong Un and senior missile officials observing the test. Kim’s daughter, Kim Ju Ae, also appears in the imagery.

Kim Jong Un and Kim Ju Ae monitor the progress of the Hwasong-11Ma-1 test. North Korean State Media

North Korea displayed a mock-up of what it called the Hwasong-11Ma at its Defense Development-2025 exhibition in October 2025. The design uses the basic architecture of the Hwasong-11 family, known in the West as the KN-23 family, but substitutes a distinctive glide wedge-shaped vehicle for the conventional warhead arrangement.

The Hwasong-11Ma, among other weapons, on display at the weapons exhibition in Pyongyang in October 202. North Korean State Media

North Korea claimed another hypersonic missile test that same month, but did not release launch imagery clearly connecting that test to the Hwasong-11Ma. The missile was subsequently shown again during a military parade in Pyongyang.

Hwasong-11Ma missiles on five-axle TELs at last October’s military parade in Pyongyang. North Korean State Media

The latest “-1” designation suggests an iterative evolution of the Hwasong-11Ma, although Pyongyang has not explained what modifications it represents.

Based on the imagery, the new configuration also includes a modified launcher, with the missile carried on a six-axle transporter-erector-launcher (TEL). When the Hwasong-11Ma was first shown, it was mounted on a five-axle TEL. The latest vehicle also appears to incorporate modified retractable covers around the missile.

It remains unclear whether the new TEL represents a standardized operational vehicle or a test configuration.

Preliminary illustration of the new launch vehicle for North Korea's hypersonic missiles. pic.twitter.com/dZ31LA1cbn

— Tal Inbar (@inbarspace) September 22, 2026

As with previous North Korean weapons announcements, the country’s state media claims need to be treated very cautiously. Pyongyang has a long record of publicizing weapons systems and test results that cannot be independently verified, while some of its purported hypersonic tests have left outside analysts unable to determine whether the advertised maneuvering performance was actually demonstrated.

Perhaps the most revealing test-related imagery comes from a display screen photographed at the launch site.

Kim Jong Un and his daughter can be seen watching the screen, which shows the apparent flight trajectory of the Hwasong-11Ma-1. The displayed path initially follows a ballistic trajectory before descending and then performing a pull-up maneuver, regaining altitude before continuing toward the target area.

That type of trajectory is consistent with the basic concept behind a hypersonic glide vehicle. The booster provides the initial velocity and altitude, after which the unpowered glide body follows a relatively shallow, atmospheric flight path at hypersonic speeds, while maneuvering rather than following a simple ballistic path.

The graphic is useful for understanding what Pyongyang says the weapon is designed to do, but it does not independently demonstrate that the missile actually followed the depicted trajectory.

The flight data visible on the display provides some unusually specific figures.

Enhancing the original image released by North Korea allows for an excellent view of the HS-11Ma hypersonic glide missile trajectory, providing altitude and speed data. Note: Slight inaccuracies in the numbers may occur due to the use of AI tools. pic.twitter.com/M4LkfF5VYu

— Tal Inbar (@inbarspace) September 22, 2026

According to the North Korean imagery, the missile traveled 908.2 kilometers (564.3 miles), reached an altitude of 35.8 kilometers (22.2 miles), and remained in flight for approximately 445 seconds, or 7.4 minutes.

The display gives a velocity of 2,146 meters per second, equivalent to roughly 4,800 mph. That is hypersonic velocity in the aerodynamic sense, but speed alone is not what makes a hypersonic glide weapon particularly challenging to defend against. More consequential parameters include sustained controlled flight, maneuverability, guidance, and accuracy.

Other portions of the display appear to show additional points along the flight, including different times, altitudes, and speeds. None of these figures have been independently verified.

The TEL raises one of its two Hwasong-11Ma-1 missiles into the launch position. North Korean State Media

The claimed range is particularly noteworthy because it does not match the publicly reported tracking data from South Korea and Japan.

South Korea’s Joint Chiefs of Staff said North Korea launched two SRBMs from the Wonsan area on September 20. The missiles were assessed to have traveled approximately 450 and 600 kilometers, respectively.

Japan similarly reported two launches, assessing the first at approximately 440 kilometers and the second at approximately 590 kilometers, with maximum altitudes of roughly 60 and 70 kilometers.

Those figures are substantially different from the 908.2-kilometer distance shown on North Korea’s display.

The Hwasong-11Ma-1 climbs after launch. North Korean State Media

The discrepancy does not necessarily establish that either side’s data are incorrect. The North Korean figure could represent a different measurement of the flight path, or could correspond to a portion of the test that was not reflected in the public South Korean and Japanese assessments. It is also possible, if not highly probable, that Pyongyang selectively presented or altered the data.

South Korean analysts have already raised questions about the unusually long distance displayed by North Korea. Yonhap reported that experts suggested Pyongyang may have altered the figure to portray the test as more successful.

Regardless of the range actually achieved in this test, the Hwasong-11Ma/Ma-1 is significant because it represents an attempt to combine a relatively compact SRBM with a maneuvering hypersonic glide vehicle.

The underlying Hwasong-11 family is a well-established North Korean missile design. In its KN-23 configuration, members of the family have also been used by Russia against Ukraine. By placing a glide vehicle on this type of booster, Pyongyang could potentially give a regional strike weapon a flight profile substantially different from that of a conventional ballistic missile. The Hwasong-11Ma/Ma-1 also uses a solid-fuel booster, allowing for faster launches than earlier liquid-fuel designs.

The original North Korean Hwasong-11 short-range ballistic missile. North Korean State Media

In principle, the Hwasong-11Ma/Ma-1 could give North Korea an additional hypersonic strike option against more heavily defended targets in South Korea. Having road-mobile TELs would also provide greater operational flexibility despite their relatively limited range, while making it more difficult for adversaries to locate and track the launchers.

A genuine boost-glide weapon creates significant challenges for defending forces since the sheer speed of the weapon bypasses most air defenses. Its trajectory can also become less predictable after the boost phase. Maneuvering at lower altitudes could also reduce the time available to detect, track, and engage the weapon.

A close-up look at the Hwasong-11Ma’s boost-glide-vehicle. North Korean State Media

However, the available imagery does not establish the extent of the vehicle’s maneuverability, its ability to maintain controlled flight, its accuracy, or the reliability of the complete missile system.

North Korea has made similar claims about its hypersonic weapons in the past.

Pyongyang says it has flight-tested multiple hypersonic boost-glide vehicle designs since at least 2021, but there continue to be questions about what degree of actual capability the country has achieved in this regard. Viable wedge-shaped boost-glide vehicles have historically been extremely difficult to design and then bring to an operational state.

The challenge is not simply reaching hypersonic speed. A weapon has to sustain controlled flight and maneuverability under extreme thermal loads, while also overcoming demanding materials-science, guidance, and navigation requirements. The terminal phase is harder still. Accurately finding and striking a moving target, particularly a ship, requires a highly capable seeker and guidance system. Integrating a nuclear warhead introduces another layer of engineering and weapons-design challenges.

Those demands have made hypersonic weapons a major technological challenge for the United States and other major powers. China is currently widely regarded as the leading country in deploying and developing operational hypersonic systems, although important questions remain about the capabilities and maturity of individual weapons.

Pyongyang said it first flight-tested a wedge-shaped hypersonic glide vehicle in 2021 aboard the liquid-fuel Hwasong-8, before pairing a similar-looking vehicle with the solid-fueled Hwasong-16B intermediate-range ballistic missile (IRBM) in 2024.

VIDEO: Korean Central Television (KCTV) broadcasted footage of North Korea successfully testing the new "Hwasong-16B" hypersonic intermediate-range ballistic missile (IRBM) on Tuesday. pic.twitter.com/VNdhLAeyyK

— NK NEWS (@nknewsorg) April 3, 2024

In its coverage of the latest test, North Korean state media initially avoided identifying the weapon, describing the event as a successful trial of a “new-type weapon” that it said was significant for the rapid development of weapons technology.

Kim said the development would give adversaries an “incurable headache” and deliver what he described as a “cruel and unavoidable blow.”

Tal Inbar, the head of the Space and UAV Research Center at Israel’s Fisher Institute for Air and Space Strategic Studies identifies the Hwasong-11Ma/Ma-1 as a “very significant weapon, bringing hypersonics to the operational/tactical arena and [posing] a challenge to … air and missile defense systems.”

Whatever the exact achievements of the test, the imagery points to continued development of a weapon North Korea first publicly displayed nearly a year ago. The appearance of a new, six-axle TEL, a potentially modified missile, combined with the apparent flight test, suggests that the Hwasong-11Ma/Ma-1 program has progressed since its initial public unveiling.

What remains uncertain is how much of that progress represents a genuine improvement in operational capability.

The latest test therefore provides another indication of the resources and attention Pyongyang is devoting to hypersonic weapons, but the available evidence is still insufficient to determine how closely the Hwasong-11Ma-1’s actual performance matches the capabilities depicted by North Korean state media.

Contact the author: thomas@thewarzone.com

The post North Korea Tests New Hwasong-11Ma Hypersonic Missile appeared first on TWZ.

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