U.S. Air Force Staff Sgt. Angel Leon, 379th Expeditionary Security Forces Squadron member, takes down notes at a simulated active shooter scene at Al Udeid Air Base, Qatar, Feb. 15, 2022. The 379th Air Expeditionary Wing executed Grand Shield 22-3, which demonstrated the wing’s ability to survive and operate while establishing effective command, control and communications (C3) in a contested environment. (U.S. Air Force photo by Staff Sgt. Stefan Alvarez)
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