Republic of Korea Air Force Col. Bum Ki Lee, left, Air Force Operations Command Service & Support Group commander, and U.S. Air Force Col. Jeffrey Elliott, 51st Mission Support Group commander, pose for a photo after signing a Memorandum of Understanding at Osan Air Base, ROK, July 22, 2026. The agreement, the result of a 10-month collaborative effort, strengthens interoperability, enhances security and reinforces the enduring U.S.-ROK Alliance through standardized training, joint patrols and shared adherence to U.S. Forces Korea regulations. (U.S. Air Force photo by Staff Sgt. Tylir Meyer)