North Koreans attend a rally to support a statement given on Tuesday by a spokesman for the Supreme Command of the Korean People's Army vowing to cancel the 1953 cease-fire that ended the Korean War as well as boasting of the North's ownership of &quot;lighter and smaller nukes&quot; and its ability to execute &quot;surgical strikes&quot;  meant to unify the divided Korean Peninsula, at Kim Il Sung Square in Pyongyang, North Korea, on Thursday, March 7, 2013. North Korea on Thursday vowed to launch a pre-emptive nuclear strike against the United States, amplifying its threatening rhetoric hours ahead of a vote by U.N. diplomats on whether to level new sanctions against Pyongyang for its recent nuclear test. The billboard in background depicts a large bayonet pointing at U.S. army soldiers with writing reading &quot;If you dare invade, only death will be waiting for you!&quot; (AP Photo/Jon Chol Jin) Photo: AP / AP