The USAF 939th Air Refueling Wing is a unit within the United States Air Force. It is primarily responsible for air refueling operations, providing in-flight fuel to other aircraft, which is crucial during extended missions, such as long-range surveillance or strategic bombing. Based at Joint Base Pease, New Hampshire, the 939th ARW operates Boeing KC-135 Stratotanker aircraft, a versatile and proven refueling platform used by the U.S. Air Force since the mid-1950s. The unit’s mission is integral to the wider operations of the USAF, ensuring the continued ability to project air power globally.