A U.S. Army CH-47 Chinook approaches the flight deck of the U.S.S. Wasp mulitipurpose amphibious assault ship during deck landing qualification training Dec. 8, 2009. Forty-six U.S. Army aircrew members conducted the training with the Chinook and Blackhawk helicopters, staying aboard the Wasp while underway in the Caribbean Sea. (U.S. Air Force photo/Tech. Sgt. Mike Hammond).