A 14-inch gun barrel from the battleship USS Arizona begins its move from the Naval Surface Warfare Center Dahlgren Division in Virginia to Phoenix, Ariz. The gun barrel, removed from Arizona to be relined before World War II, was at the Dahlgren Naval Proving Ground for proof testing when the attack on Pearl Harbor occurred Dec. 7, 1941. The state of Arizona is also moving a USS Missouri gun barrel from Norfolk Naval Shipyard's St. Julien's Creek Annex to exhibit with the Arizona gun. These two barrels represent "bookends" of World War II, the beginning and end of the war. (U.S. Navy photo by: John J. Joyce)