FILE - This July 29, 1953 black-and-white file photo shows happy fliers of the 18th Fighter Bomber wing let the world know how they feels as the come back from one of the combat missions over North Korea to learn of the armistice signing. From left are: 2nd Lt. John Putty, Dallas, Tex.; 1st Lt. James A. Boucek, Ottawa, Kan.: and 1st Lt. Richard D. Westcott, Houston, Tex., waving from back seat of jeep. Sixty years after it finished fighting in Korea, the U.S. is still struggling with two legacies that are reminders of the costs -- political, military and human -- that war can impose on the generations that follow. The first is the leading role that America still is committed to playing in defending South Korea should the 1950-53 Korean War re-ignite. (AP Photo, File)