North Korea's Kim calls for 'accelerated' war preparations

North Korean leader Kim Jong Un urges the party to accelerate war preparations, including a nuclear program, at a year-end key party meeting. Kim emphasizes the military situation on the Korean peninsula becoming extreme due to unprecedented anti-North confrontations with Washington. Seoul, Tokyo, and Washington increased defense cooperation in response to record-breaking weapons tests by Pyongyang. US deploys strategic weapons, such as B-52 bombers, in joint drills on Korean peninsula, which North Korea considers intentional nuclear war provocative moves.