U.S. Navy Aviation Support Equipment Technician Airman Wallace Pelesasa stands at attention while manning the rails aboard the aircraft carrier USS Nimitz (CVN 68) as the ship leaves San Francisco, Calif., following a three-day port visit May 30, 2012. Nimitz participated in festivities celebrating the 75th anniversary of the opening of the Golden Gate Bridge. (U.S. Navy photo by Mass Communication Specialist 3rd Class Ian A. Cotter/Released)