Milwaukee Mitchell International Airport (MKE) is a civil–military airport located 5 nautical miles south of downtown Milwaukee, Wisconsin, United States. The airfield was established in 1920 as Hamilton Airport by Thomas F. Hamilton. Milwaukee County purchased the land in 1926, renaming it Milwaukee County Airport. The first terminal opened in 1927. In 1941, the airport was renamed General Mitchell Field after Brigadier General William "Billy" Mitchell. During World War II, from 1945, Mitchell Field was leased to the War Department and used as a prisoner-of-war camp. The current terminal opened in 1955 and has undergone renovations and expansions. In 1986, it was renamed General Mitchell International Airport, and in 2019, it became Milwaukee Mitchell International Airport to emphasize its location. The airport covers 2,314 acres and features five asphalt and concrete runways. It hosts the General Mitchell Air National Guard Base, home to the 128th Air Refueling Wing, an Air Mobility Command-gained unit of the Wisconsin Air National Guard, operating the Boeing KC-135R Stratotanker. Previously, the 440th Airlift Wing of the Air Force Reserve Command was stationed at the General Mitchell Air Reserve Station until its relocation in 2007. The airport includes two concourses with 38 gates, an International Arrivals Building, the Mitchell Gallery of Flight museum, and a USO room. The airport has been recognized by the Airports Council International as one of the best airports globally.