The Safeguard Program was a United States Army anti-ballistic missile system developed in the late 1960s. Several sites were planned in the United States, but only one was completed. Until the Ground-Based Midcourse Defense system was deployed, the Stanley R. Mickelsen Safeguard complex in Nekoma, North Dakota, with the separate long-range detection radar located further north near the town of Cavalier, North Dakota, was the only operational anti-ballistic missile system ever deployed by the United States. It defended Minuteman ICBM silos near Grand Forks AFB, North Dakota.