Joint Terminal Attack Controllers of the 137th Special Operations Wing, Oklahoma Air National Guard, solidify their plan of action for a combat search and research mission on Sept. 17. SENTRY REX 19-02 training mission assault force was supported by E-3AWACS, E-8 J-STARS, MC-12 W Liberty and KC-135 Stratotankers (U.S. Air Force photo/2nd Lt. Ashlyn K. Paulson).