Reserve Airmen from the 168th Aircraft Maintenance Squadron (AMXS) work with Airmen from the 507th AMXS from Tinker Air Force Base, Okla. to replace a damaged heat shield on the brake systems of a U.S. Air Force KC-135 Stratotanker, 909th Air Refueling Squadron, Kadena Air Base, Japan, May 15, 2019, at Eielson Air Force Base, Alaska during exercise Northern Edge 2019. More than 25 units and 10,000 personnel with approximately 200 aircraft and five naval ships are participating in Northern Edge 2019. More