US Navy (USN) SEAMAN (SN) Barrett Prince, a Aircraft handling and chock crew Sailor, stationed aboard the USN Amphibious Command Ship, USS BLUE RIDGE (LCC 19), waits to remove chocks and chains from a US Army (USA) UH-60L Blackhawk (Black Hawk) helicopter from Alpha Company, 78th Aviation Battalion, during a joint training exercise for pilots and crew members conducted with the ship underway in the Western Pacific Ocean