Airmen assigned to the 18th Operations Support Squadron perform air traffic control duties during Exercise WestPac Rumrunner at Kadena Air Base, Japan, Oct. 16, 2020. The 18th Wing executed the third iteration of Exercise WestPac Rumrunner with joint partners with a focus on improved interoperability and fine-tuning of agile combat employment concepts. ACE is the cornerstone of the wing’s operating concept. It enables forces to operate from locations with varying levels of capacity and support, ensuring multi-capable Airmen are postured in a position of advantage to generate combat power. (U.S. Air Force photo by Staff Sgt. Kristan Campbell)