Soldiers from the 2nd Combat Aviation Brigade, Camp Humphreys, Republic of Korea, receive a safety brief from Staff Sgt. Lacarvia Heart before off-loading three new AH-64D Apache Longbows from a C-17 Globemaster III, on Sept. 9, 2009, at Osan Air Base, Korea. These helicopters are the first of 24 the Army is swapping for the newer block II model over the next four months. Sergeant Heart is assigned to the 731st Air Mobility Squadron at Osan, a sub-unit of the 515th Air Mobility Operations Group at Yokota AB, Japan. (U.S. Air Force Photo/Staff Sgt. Brian Ferguson)