U.S. Air Force Staff Sgt. Michael Perry (left), 604th Air Support Operations Squadron tactical air control party, evaluates and instructs a Republic of Korea Air Force joint terminal attack controller during JTAC simulated system training at Osan Air Base, Republic of Korea, Sept. 25, 2019. The partnership training with ROKAF JTACs is provided by the 607th Air Support Operations Group to enhance knowledge and the different equipment used by U.S. forces. (U.S. Air Force photo by Staff Sgt. Ramon A. Adelan)