North Korea’s Naval Advancements Under Kim Jong-un
Kim Jong-un oversaw nuclear-capable cruise missile tests and other weaponry exercises on the newly-refurbished Kangkong destroyer, according to state media reports on Sunday. This marks another step in Kim’s ambition to enhance North Korea’s naval nuclear capabilities, following repairs to the ship after a failed launch last year.
The Korean Central News Agency stated that on Friday, the tests included firing drills for both the main and automatic guns of the Kangkong, as well as trials for electronic warfare systems and assessments of target recognition and data handling.
After viewing the tests from a distance, Kim instructed his officials to finalize the Kangkong’s testing phase and to make it operational within two months, as reported by state media.
This test followed the commissioning of North Korea’s first 5,000-ton destroyer, the Choi Hyon, which took place in late June. Kim celebrated this milestone during a grand ceremony, asserting that the nuclear armament of the navy is progressing on schedule.
Having previously focused heavily on ballistic missile advancements, Kim has recently redirected attention toward enhancing naval capabilities, including ambitions to develop nuclear submarines.
During a Labor Party convention in February, Kim even outlined a five-year military agenda that includes plans for an intercontinental ballistic missile to be launched underwater.
The Choi Hyon was first unveiled in April 2025. Kim portrayed it as a key move toward increasing the military’s operational capacity and first-strike potential.
KCNA highlighted that the Kangkong is outfitted with various systems, including anti-aircraft and anti-ship weapons, in addition to its nuclear-capable ballistic and cruise missiles.
Experts and officials from South Korea believe the Kangkong might have been constructed with Russian assistance, reflecting the growing military cooperation between the two nations. However, some analysts express skepticism regarding the destroyer’s effectiveness once it enters operational service.
Originally introduced in May 2025, the Kangkong suffered damage during a failed launch at a northern Chongjin port, prompting a frustrated response from Kim. After undergoing repairs, it was reported to have been relaunched in June, but experts remain doubtful about its readiness for active duty.
Looking ahead, Kim has proposed building two additional 5,000-ton warships each year for the next five years, alongside plans for a larger 10,000-ton destroyer.

