U.S. Navy Seaman Marlena Peter holds a flag representing one of eight battleships sunk or damaged during the Japanese attack on Pearl Harbor as part of a ceremony on the aircraft carrier USS Theodore Roosevelt (CVN 71) in the Atlantic Ocean 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.