120113-F-UL677-050
U.S. Army Rangers, 1st Battalion, 75th Ranger Regiment, Charlie Company, protect their faces and gear from the dust and prop wash of a UH-47 Chinook during a Combined Arms Live Fire Exercise (CALFX) near Ft. Stewart, Ga., Jan. 13, 2012. The exercise is conducted in order to evaluate and train members on de-escalation of force, reactions to enemy contact, and other objectives that prepare them for forward operating. (U.S. Air Force photo by Airman 1st Class Matthew J. Bruch/Released)