The arms race between North and South Korea has expanded underwater as the North on Thursday condemned the South’s plan to build a nuclear-powered submarine as a security threat and unveiled the completed hull of its own nuclear sub, which is under construction.
North Korea’s leader, Kim Jong-un, had designated building a nuclear sub as one of his top weapons projects during a Workers’ Party congress held in 2021. In March, North Korea’s state media carried photos showing such a vessel under construction. On Thursday, the state media carried photos of Mr. Kim inspecting the completed hull of what it called a nuclear-powered strategic guided missile submarine.
Outside officials and analysts have long questioned how soon North Korea would be able to acquire complex technologies and components for a nuclear submarine, and how and from where it would supply the small nuclear reactor needed to power it. The unveiling on Thursday indicated that North Korea was making progress, although it has yet to announce when it expects to finish and deploy the vessel.
The completed and welded hull “means that they have already mounted a nuclear reactor inside,” said Hong Min, an expert on the North Korean military at the Korea Institute for National Unification, a government-funded think tank based in Seoul.
Mr. Hong suspected that North Korea was receiving technological help from Russia in return for having sent troops and weapons to aid Moscow’s war efforts against Ukraine.
The North Korean sub appeared to be designed to carry ballistic and cruise missiles, as well as torpedoes, military experts said. North Korea has been testing various submarine-launched missiles and torpedoes in recent years, claiming that they were built to deliver nuclear warheads. It said its nuclear weapons development was justified by a growing military threat it felt from the United States and its Asian allies, Japan and South Korea.
On Thursday, Pyongyang bristled at the arrival of the U.S.S. Greeneville, a Los Angeles-class American nuclear-powered attack submarine, at a naval base in Busan at the southeastern tip of South Korea this week. South Korea’s Navy said the American vessel made the port call to replenish supplies and to allow its crew members to rest. North Korea’s Defense Ministry called it “a grave act of causing instability and escalating military tensions.”
Also on Thursday, North Korea said Mr. Kim inspected the first test of a new high-altitude, long-range surface-to-air missile under development. During the test, which was conducted on Wednesday, the missiles hit mock targets at an altitude of 124 miles, it said. The South Korean military confirmed the launching of several land-to-air missiles by the North, but did not provide details.
In November, the United States agreed to help South Korea build its first nuclear-powered submarine to strengthen its navy’s ability to patrol waters around the Korean Peninsula. South Korea said its nuclear-powered submarines would not carry nuclear weapons. It said it felt no need to build nuclear weapons because the United States provided it with nuclear-umbrella protection.
But Mr. Kim said North Korea regarded the South Korean project as “an offensive act” and “a threat to its security that must be countered.” It compels North Korea to accelerate “the modernization and nuclear weaponization of the naval force,” he said.
Such efforts by Mr. Kim have gained momentum since Russia’s invasion of Ukraine. Mr. Kim has aided Russia’s war efforts by sending troops and large shipments of artillery shells, missiles and other weapons. South Korean intelligence officials and analysts said Russia had reciprocated by providing North Korea with fuel and food, plus materials and technologies to help modernize its military, including its decrepit navy and air-defense systems.
North Korea is expected to hold its party congress early next year. The congress, held once every five years, is the most important political event in North Korea, where Mr. Kim will likely show his military achievements and set new policy goals for the next five years.
Choe Sang-Hun is the lead reporter for The Times in Seoul, covering South and North Korea.
The post North Korea Unveils the Completed Hull of What It Calls a Nuclear Submarine appeared first on New York Times.
