Guard support
Tech. Sgt. Jason Pry (left) and Senior Airman Justin Butler fill the liquid oxygen tank on an F-16 Fighting Falcon in preparation for takeoff from McEntire Air National Guard Base, S.C., Aug. 28. Members of the 169th Fighter Wing are filling an air expeditionary force role for Pacific Air Forces. The Airmen are assigned to the 169th Maintenance Squadron. (U.S. Air Force photo/Tech. Sgt. Carol Smith)