Japan Air Self-Defense Force Southwestern Civil Engineering Group Airman 1st Class Ishihara and Staff Sgt. Karasuyama lay concrete during rapid airfield damage repair exercise Aug. 30, 2019, at Naha Air Base, Japan. Ishihara and Karasuyama trained with U.S. Airmen from the 18th Civil Engineer Squadron as part of a regular bilateral partnership-building program to enhance interoperability and joint execution of airfield repair in the event of aerial attacks on either service’s airfields. (U.S. Air Force photo by Staff Sgt. Peter Reft)