U.S. Air Force Capt. Audrey Springer, 909th Air Refueling Squadron KC-135R aircraft commander, performs preflight checks in preparation for a simulated maritime strike at Kadena Air Base, Japan, Dec. 15, 2021. Springer’s crew provided refueling support to the simulated maritime strike, coordinated by U.S. Marines and Japan Ground Self-Defense Force Soldiers operating a Bilateral Ground Tactical Coordination Center as part of a bilateral rehearsal of Expeditionary Advanced Base Operations. (U.S. Air Force photo by Airman 1st Class Moses Taylor)