North Korea warns of nuclear war due to US-South Korea military drills.

North Korean state media warns that recent US-South Korea military drills are pushing the security situation in the region to "the brink of a nuclear war." The US military flew nuclear-capable B-52 bombers over the Korean Peninsula during joint exercises with South Korea. North Korea has been speaking out against the drills. Last month, North Korean leader Kim Jong Un called on his country to be ready to launch a nuclear attack to deter war.