An Illinois Army National Guard CH-47 Chinook exits an Air Force C-17 Globemaster III at the Peoria Army Aviation Support Facility, Peoria, Ill., Nov. 26, 2013. The aircraft transported the helicopter back to the 2nd Battalion, 238th General Support Aviation Battalion from service in Afghanistan. (U.S. Air National Guard photo by Staff Sgt. Lealan C. Buehrer/Released)