FILE - This July 27, 1953 black-and-white file photo shows Lt. Martin H. Petersen of Franklin Park, N.Y., an MP officer on special detail, standing guard over the still-secret armistice documents as they lie on a table inside the Armistice building at Panmunjom waiting to be signed by U.N. and Communist delegates. In background are North Korean security guards. 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/George Sweers, File)