America's first ICBM was the ATLAS missile, which was developed in the 1950s as part of the Cold War arms race. It was the first intercontinental ballistic missile developed by the United States and was the first to be successfully tested. The ATLAS missile was a two-stage rocket powered by liquid oxygen and RP-1 fuel, and it had a range of over 6, 000 miles. It was used for both military and civilian purposes, including launching satellites into space.