Scott Air Force Base (AFB) is a major United States Air Force installation located in Illinois, with a mission of providing global mobility and logistics support to the Department of Defense. It is home to several major commands, including the United States Transportation Command (USTRANSCOM) and the Air Mobility Command (AMC), as well as the 18th Air Force, the 375th Air Mobility Wing, and the Defense Information Systems Agency (DISA). The base supports critical functions such as airlift, air refueling, medical evacuation, and global logistics, playing a vital role in ensuring the readiness and effectiveness of the US military.