Pearl Harbor survivors salute as the national anthem

Pearl Harbor survivors salute as the national anthem is played during a Pearl Harbor remembrance ceremony in the Jack Murdock Auditorium at the Naval Undersea Warfare Center in Keyport, Wash., Dec. 7, 2013. The morning of Dec. 7, 1941, Japanese bombers staged a surprise attack on U.S. military forces in Hawaii. The day after the attack, before a joint session of Congress, President Franklin D. Roosevelt asked for a declaration of war against Japan and the U.S. officially entered World War II. (U.S. Navy photo by Mass Communication Specialist 2nd Class Chris Brown/Released)