A KC-135 Stratotanker is seen from an F-15D Eagle while preparing to refuel Dec. 11, 2018, over the East China Sea. The 909th Air Refueling Squadron helps ensure a free and open Indo-Pacific by providing air refueling to U.S., allies and partners within the area of responsibility. (U.S. Air Force photo by Airman 1st Class Matthew Seefeldt)