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U.S. Air Force maintainers with the 36th Fighter Generation Squadron, Osan Air Base, Republic of Korea, perform a pre-flight maintenance inspection on a U.S. Air Force F-16 Fighting Falcon assigned to 36th Fighter Squadron, during Commando Sling 23 at Lebar Air Base, Republic of Singapore, Nov. 15, 2023. CS23 is a Pacific Air Forces sponsored bilateral training event with the Republic of Singapore Air Force designed to increase interoperability and improve alliance capability. (U.S. Air Force photo by Staff Sgt. Pedro Tenorio)