U.S. Air Force Staff Sgt. Paul Williams, 633rd Wing Staff Agency unit training manager, checks required items during a deployment readiness exercise at Langley Air Force Base, Va., Aug 27, 2015. The exercise was part of an initiative directed by the 9th Air Force to test each of its subordinate wing’s capability to rapidly deploy to support combatant commanders across the globe and ensure the unit’s Airmen are ready when called upon. (U.S. Air Force photo by Airmen 1st Class Derek Seifert/ Released)