Staff Sgt. William Messer top and Tech. Sgt. John Glenister, security forces Airmen, advance up a staircase during a room-clearing training exercise Aug. 7, 2010, at Eglin Air Force Base, Fla. Air Force Reserve Command’s 919th Security Forces Squadron teams practiced entry and clearing tactics with varying targets and objectives. Samuel King Jr.

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Photo credit: © Z2A1 / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: .., air, defense, force, military, united, war