  | 
				U.S. Air Force airmen take down a tent structure on Ali 
				Base, Iraq, Sept. 30, 2009. The airmen, assigned to the 407th 
				Expeditionary Civil Engineer Squadron, are downsizing and 
				consolidating materials and equipment to send to U.S. 
				warfighters in Afghanistan. 
				U.S. Air Force photo by 
				Senior Airman Tony R. Ritter  |