U.S. Air Force helmet and gas mask pouch is laid out on a table during the Prime Base Engineer Emergency Force, also referred to as BEEF, Challenge at Ellsworth Air Force Base, S.D. Sept. 22, 2022. The Prime BEEF Challenge is a physical and mental readiness challenge that tests every engineer’s capability to operate while under extreme stress. This is an annual challenge that was established to imitate the events that engineers can face in a deployed environment. (U.S. Air Force Photo by Airman Yendi Borjas)
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