North Korea vows to launch nuclear strike at US

North Korea has vowed to launch a pre-emptive nuclear strike against the United States, hours ahead of a vote by UN diplomats on whether to impose new sanctions against Pyongyang for its recent nuclear test.
Pyongyangâs Foreign Ministry said the North will exercise its right for âa pre-emptive nuclear attack to destroy the strongholds of the aggressorsâ because Washington is pushing to start a nuclear war against the North.