The 147th Air Refueling Squadron is a unit of the United States Air Force, specifically part of the Illinois Air National Guard. Its primary role involves aerial refueling operations to extend the range and endurance of other aircraft. This squadron operates KC-135 Stratotanker aircraft from its home station at Scott Air Force Base, Belleville, Illinois. The 147th Air Refueling Squadron is one of several air refueling units within the U.S. Air Force and serves to support a variety of missions both domestically and internationally, ensuring the continuous operation of military aircraft over extended periods and distances.