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Members of the 35th Combat Communications Squadron, Tinker Air Force Base, Okla., hone their skill during a field training exercise at the Lackland AFB Media Annex in San Antonio, Texas. The 35th CBCS is one of four Reserve combat communications squadrons each located in separate regions of the country that provide theater-deployable communications during wartime and contingency operations or humanitarian missions in austere locations. (U.S. Air Force photo)