U.S. Air Force Staff Sgt. Jarrod Clark, left, a 35th

U.S. Air Force Staff Sgt. Jarrod Clark, left, a 35th Aircraft Maintenance Squadron crew chief, listens as his counterpart, Koku-Jieitai Airman 1st Class Koudai Okuguchi, right, a 2nd Air Wing Field Maintenance Squadron crew chief, explains how Koku-Jieitai maintainers care for their F-15J Eagles during a 10-day U.S.-Japan Bilateral Career Training at Chitose Air Base, Japan, April 18, 2017. Okuguchi and Clark worked together to remove a panel from the aircraft to conduct repairs before sending the jet back to the flight line for operational orders. Koku-Jieitai is the traditional term for Japan Air Self Defense Force used by the Japanese. (U.S. Air Force photo by Tech. Sgt. Benjamin W. Stratton)