U.S. Air Force and Japan Air Self-Defense Force service members conduct a rapid airfield damage repair exercise Aug. 30, 2019, at Naha Air Base, Japan. The week-long bilateral training program involving the 18th Civil Engineer Squadron and the Southwestern Civil Engineering Group enabled members of both air forces to integrate training, tactics and procedures to enhance partnerships and interoperability for effective joint response in the event of attacks on airfields. (U.S. Air Force photo by Staff Sgt. Peter Reft)