The trilateral Freedom Edge exercise comes after North Korea launched a nuclear-capable missile and sent troops to Russia.

North Korean troops have officially engaged in combat alongside Russian forces in Ukraine's Kursk region, marking a significant development.

North Korea ratified a major defense treaty with Russia stipulating mutual military aid, the North’s state media reported Tuesday, as the U.S., South Korea and Ukraine say North Korea has sent thousands of troops to Russia to support its war against Ukraine.