Joint logistics training exercise
Participants practice how to attach vehicles to a CH-47 Chinook during a joint logistics training exercise Sept. 11, 2011, at Sparta Army National Guard Base, Ill. The Chinook is also a multi-mission, heavy-lift transport helicopter, and its primary mission is to move troops, artillery, ammunition, fuel, water, barrier materials, supplies and equipment on the battlefield. (U.S. Air Force photo/ Airman 1st Class Jake Eckhardt)