Pennsylvania Air National Guard Tech. Sgt. Bill Paull,

Pennsylvania Air National Guard Tech. Sgt. Bill Paull, a boom operator assigned to the 171st Aerial Refueling Wing, of Pittsburgh, conducts aerial operations on board a KC-135 Stratotanker during exercise Southern Strike 15 (SS15) near the Combat Readiness Training Center (CRTC) in Gulfport, Miss., Oct. 28, 2014. SS15 is a total force, multiservice training exercise hosted by the Mississippi National Guard's CRTC from Oct. 27 through Nov. 7, 2014. The SS15 exercise emphasizes air-to-air, air-to-ground and special operations forces training opportunities. These events are integrated into demanding hostile and asymmetric scenarios with actions from specialized ground forces and combat and mobility air forces. (U.S. Air Force photo by Tech. Sgt. Barry Loo/Released)