Russia Supplies Antiaircraft Missiles to North Korea, the South Says

Russia has supplied North Korea with antiaircraft missiles in return for the deployment of its troops ​to fight in Russia’s war against Ukraine, South Korea’s national security adviser said on Friday.​

In recent weeks, North Korea has sent an estimated 1​1,000 troops, some of whom have joined Russian forces in their fight to retake territories occupied by Ukraine in Russia’s Kursk region, according to South Korean and United States officials. It has also sent close to 20,000 shipping containers of weapons to Russia since the summer of 2023, including artillery guns and shells, short-range ballistic missiles and multiple-rocket launchers, South Korean officials have said.

In return, North Korea has been widely expected to seek Russian help in modernizing its conventional armed forces and advancing its nuclear​ weapons program and missiles. One of the ​biggest weaknesses of the North Korean military ​has been its poor​, outdated air defense system, while the United States and its allies in South Korea and Japan run fleets of high-tech war planes, ​including F-35 stealth fighter jets.

“We understand that Russia has provided related equipment and anti-air missiles to shore up the poor air defense for Pyongyang,” the North Korean capital, ​South Korea’s national security adviser​, Shin Won-shik, ​said in an interview with SBS-TV on Friday.

The cooperation between Pyongyang and Moscow came as Kim Jong-un, the leader of North Korea, continued to stoke confrontational rhetoric against the United States and South Korea. In a speech at a military exhibition on Thursday that was reported by state media, Mr. Kim warned that the Korean Peninsula has never faced such risks of nuclear war as now, blaming the tensions on Washington’s “aggressive and hostile” policy.

Mr. Shin said Russia was also supplying other military technology to North Korea, including help to improve North Korea’s satellite-launch programs.​ After two failed attempts, North Korea placed its first spy satellite into or​bit last November​, triggering speculation that Russia was behind the success. But in May, a North Korean rocket carrying another military reconnaissance satellite into orbit exploded midair shortly after takeoff.