More N Korean sabre rattling over drills NORTH Korea has warned the top US commander in South Korea to cancel upcoming drills aimed at deterring Pyongyang's military provocations. Pyongyang's official media say the warning was sent to General James Thurman on Saturday. The US and South Korea earlier notified the North of their plans to begin the annual Key Resolve and Foal Eagle exercises next month. North Korea calls the joint drills a prominent example of US hostility against it. Pyongyang says the hostility compelled North Korea to conduct its February 12 nuclear test. US officials are negotiating in the UN Security Council for tougher sanctions against North Korea for the test, the country's third since 2006. Washington stations more than 28,000 troops in South Korea in a legacy of the 1950-53 Korean War.