North Korea's Advancements in Solid-Fuel Engine Technology for Ballistic Missiles

North Korea has conducted successful static tests of new solid-fuel engines for its banned intermediate-range ballistic missiles (IRBM), in violation of UN sanctions. The tests, which took place on November 11 and 14, are part of North Korea's ongoing efforts to modernize its military capabilities. Solid-fuel missiles are considered easier to operate and harder to detect than liquid-fuel weapons. The announcement coincided with a visit by a Russian delegation to Pyongyang, raising concerns about growing military cooperation between the two countries and their potential violation of UN sanctions.