U.S. Navy Rear Adm. Alma Grocki, left, the deputy chief of staff for fleet maintenance for the U.S. Pacific Fleet, re-enlists U.S. service members Dec. 7, 2013, during a ceremony held aboard the Battleship Missouri Memorial on Ford Island, Joint Base Pearl Harbor-Hickam, Hawaii, to commemorate the 72nd anniversary of the Pearl Harbor attack. 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 1st Class Katherine Hofman/Released)