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U.S. Air Force Senior Master Sgt. Ty Kem, 844th Communications Squadron superintendent, prepares to conduct his push-ups during the annual Murph Challenge at Joint Base Andrews, Maryland, June 5, 2026. The Murph Challenge honors fallen hero, U.S. Navy SEAL Lt. Michael P. Murphy, who gave his life in the line of duty. (U.S. Air Force photo by Airman 1st Class Kiora Brooks)