North Korea launches two projectiles into Sea of Japan after rejecting UN nuclear resolution

Sequential missile tests from Wonsan

North Korea conducted two separate weapons launches off its eastern coastline on Sunday, September 20, firing projectiles into the Sea of Japan from the vicinity of Wonsan in Kangwon Province. South Korea's Joint Chiefs of Staff and Ministry of National Defense confirmed that the initial launch occurred at approximately 3:00 p.m., identifying the projectile as a short-range ballistic missile. Japanese Defense Ministry sources and public broadcaster NHK reported a second firing at approximately 6:00 p.m., describing the object as another suspected ballistic missile. Both projectiles traveled eastward across the peninsula before descending into waters outside Japan's exclusive economic zone. The operations on Sunday marked the second time in eight days that Pyongyang launched ballistic weapons eastward, following an earlier battery of tests on September 12 that involved strategic cruise missiles, attack drones, and ballistic weapons.

Emergency security reviews in Seoul and Tokyo

The launches prompted immediate national security responses in South Korea and Japan as regional defense forces tracked the projectile trajectories. South Korea's presidential office convened an emergency National Security Council meeting in Seoul on Sunday afternoon to evaluate the security situation and monitor further military activity. In Tokyo, Japanese Prime Minister Sanae Takaichi instructed relevant government agencies to collect, analyze, and verify all intelligence surrounding the two launches. The reaction followed similar protocols enacted after the September 12 tests, when South Korea's National Security Council demanded an immediate halt to North Korean missile activity and reminded Pyongyang that such launches violate United Nations Security Council resolutions. South Korean and Japanese defense officials confirmed they are maintaining heightened surveillance across the Korean Peninsula.

Rejection of UN nuclear resolutions

The Sunday tests took place after North Korea formally dismissed multilateral non-proliferation measures and reiterated its commitment to developing its weapons arsenal. On Saturday, North Korean state media broadcast a statement rejecting a resolution passed by the United Nations nuclear watchdog targeting the country's nuclear programme. On Thursday and Friday, Kim Yo Jong, chief of the General Affairs Department of the Workers' Party of Korea and sister of leader Kim Jong Un, issued statements condemning allied military exercises for driving regional tensions. She asserted that Pyongyang would not change its trajectory regarding weapons modernization, affirming that North Korea would continue strengthening its nuclear capabilities. North Korean military commanders noted that recent combat drills were designed to boost troop readiness to completely collapse the enemy if ordered into action.

Exercise disputes and stalled negotiations

Disagreements over regional military drills continue to complicate diplomatic prospects between Washington, Seoul, and Pyongyang. North Korean officials condemned a trilateral naval exercise conducted by the United States, South Korea, and Japan from August 29 to September 10 near Guam. US President Donald Trump had ordered the Pentagon to substantially reduce the scope of the annual Ulchi Freedom Shield exercise with South Korea, citing his relationship with Kim Jong Un, who views such drills as invasion rehearsals. Kim Yo Jong dismissed the reduction, stating that shortening the maneuvers would not alter their provocative and aggressive nature, after which North Korean forces launched about 10 short-range ballistic missiles toward the sea. Kim Jong Un stated earlier in the year that North Korea could consider returning to diplomatic talks only if the United States abandoned its hostile policy and respected North Korea's status as a nuclear state.