U.S. Navy PETTY Officer 3rd Class Chris Hines, Parachute Rigger, performs maintenance on a helicopter aircrew breathing device aboard the Wasp Class Amphibious Assault Ship USS IWO JIMA (LHD 7) in the Arabian Sea on Sep. 6, 2006. The IWO JIMA is on a six-month deployment in support of Maritime Security Operations and the Global War on Terrorism.(U.S. Navy photo by Mass Communication SPECIALIST Third Class John Skrzyniarz) (Released)