Republic of Singapore Air Force Military Expert Two Master Sgt. Tan Hock Leng, 425th Fighter Squadron maintainer, performs maintenance on an F-16D Fighting Falcon, Aug. 5, 2020, at Luke Air Force Base, Ariz. Tan Hock Leng installed an LAU-129 missile onto the F-16 before flight. The RSAF is among six foreign national partners that train at Luke AFB, which directly contributes to the mission of training the world’s greatest fighter pilots and combat-ready Airmen. (U.S. Air Force photo by Senior Airman Leala Marquez)