Staff Sgt. William Terpstra, fireteam leader in the Kentucky Air National Guard’s 123rd Security Forces Squadron, takes up a defensive posture during a field training exercise at Fort Carson, Colo., May 19, 2021. More than 30 Airmen from the unit travelled here to strengthen their specialized skills during nine days of field exercises at several different ranges. (U.S. Air National Guard photo by Phil Speck)

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Photo by: Master Sgt. Phil Speck |  VIRIN: 210519-Z-JU667-0263.JPG