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U.S Air Force Lt. Sung Choi, Air Education and Training Command Pacific Engineer Readiness Challenge translator, completes an obstacle course during the Pacific Engineer Readiness Challenge at Andersen Air Force Base, Guam, Sept. 23, 2025. The challenge was designed to train 120 service members from more than 10 participating countries on different aspects of airfield damage assessment and repair, crater repair, and tactical combat casualty care. (U.S. Air Force photo by Airman 1st Class Joseph Maye)