It is home to the largest KC-135R Stratotanker wing in the Air Force Reserve Command (AFRC), plus units from the United States Army Reserve and also the US Marine Corps Reserve. The host unit is the 434th Air Refueling Wing (434 ARW), the "Hoosier Wing", which consists of three major groups and a variety of squadrons and flights. The wing develops and maintains the operational capability of its units and train reservists for worldwide duty, with the wing operationally-gained by the Air Mobility Command (AMC). Training consists of flight operations, deployments, and weekday and weekend training.