North Korean leader Kim Jong Un waved to troops marching through central Pyongyang on Monday to mark the nation's 65th birthday, but made no public comments before leaving the lavish event. Flanked by generals and senior government officials, Kim stood in a high viewing area well above and away from the sea of onlookers who cheered and held up colorful placards in unison as the troops filed passed. North Korea watchers had hoped the young leader might address the crowd to shed some light on the isolated and secretive nation's politics or diplomatic goals. The military parade in Kim Il Sung Square featured mostly reserve troops and did not include displays of the kind of heavy artillery, tanks and missiles that the North rolled out in July to commemorate the armistice that ended hostilities on the Korean Peninsula in 1953. Kim made no remarks at the July parade, either.