The USS Arizona Memorial, located at Pearl Harbor, Hawaii, marks the resting place of 1,102 of the 1,177 sailors killed on the USS Arizona during the Attack on Pearl Harbor on 7 December 1941 by Japanese imperial forces and also the events of this day. The attack on Pearl Harbor was the action that forced United States involvement in World War II. The memorial, dedicated in 1962, spans the sunken hull of the battleship without touching it. The National Park Service also operates a visitor center associated with the memorial. Historical information about the attack, boat access to the memorial, and general visitor services are available at the center.