North Korea has put a second 5,000-ton destroyer into service and linked the ship directly to its nuclear deterrent, opening a new chapter in Pyongyang’s push to build a more capable navy.

The commissioning came as the United States, South Korea and Japan began a five-day military exercise designed to improve their combined response to North Korean missile and nuclear threats.

The timing placed two very different military messages on display within hours of each other.

Yonhap News Agency reported that Kim Jong Un attended Sunday’s ceremony at Wonsan with his wife and daughter. North Korean state media described the Kang Kon as an “offensive destroyer” tied to the country’s nuclear counterattack system.

The Kang Kon is the sister ship of the Choe Hyon, another 5,000-ton destroyer commissioned in June. Together, they are North Korea’s largest and most advanced surface warships.

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State media says the class can carry both conventional and nuclear-capable weapons. In July, Pyongyang said it had test-fired strategic cruise missiles and other systems from the Kang Kon.

Those claims cannot be independently verified in full. The images and descriptions of the commissioning were distributed by North Korea’s state-controlled Korean Central News Agency, and outside reporters were not given access to the event.

The ship’s history adds another layer to the ceremony. The Kang Kon capsized during a failed launch attempt in May 2025, was righted and repaired, and then completed weapons testing this summer.

Kim also said another significant naval development would be shown to the world in eight months. He did not identify the project, though North Korea has previously publicized work on a nuclear-powered submarine.

The focus then shifted to Freedom Edge 2026.

U.S. Pacific Command said the exercise runs from September 7 through September 11 in international waters and airspace south of South Korea, as well as at military installations and command posts in Japan and South Korea. Senior commanders from all three countries marked the opening at Yokota Air Base in Japan, according to the command.

The drill covers maritime, air, cyber, and integrated air-and-missile-defense operations. U.S. Pacific Command describes it as defensive and focused on coordination, information sharing and readiness.

The exercise is the fourth iteration of Freedom Edge.

Lieutenant General Stephen Jost, commander of U.S. Forces Japan, said the three nations were demonstrating their ability to act together in defense of regional peace and security.

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North Korea condemned the drills and warned that it could answer with what its defense minister called strong countermeasures, while the allies maintain that the exercise is defensive.

The two developments point in the same direction: Pyongyang is trying to extend its nuclear posture from land-based missiles to the sea, while Washington, Seoul and Tokyo are training to coordinate across more domains at once.

The Associated Press reported that the Kang Kon is North Korea’s second 5,000-ton destroyer and that its commissioning coincided with the start of the five-day Freedom Edge exercise. The report places both developments within Pyongyang’s naval expansion and the allies’ effort to coordinate their response to missile and nuclear threats.

The exercise brings together forces from the United States, South Korea and Japan.

The Associated Press also reported that President Trump has scaled back another major U.S.-South Korea drill in an effort to reduce tensions. North Korea has so far rejected those overtures and condemned the current trilateral exercise.

For now, both sides are pairing diplomatic signals with visible demonstrations of military capability.

 

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