RSL-3 near Concrete is one of four Remote Sprint Launch sites that were built as part of theSite is open for public tours.Stanley R. Mickelsen Safeguard Complex The Stanley R. Mickelsen Safeguard Complex (SRMSC) was a cluster of military facilities near Langdon, North Dakota, that supported the United States Army's Safeguard Program, Safeguard anti-ballistic missile program. The complex provided launch an ...in northeastern North Dakota. The complex was the only anti-ballistic missile defense facility ever built in the United States. Its existence has been credited byCold War The Cold War is a term commonly used to refer to a period of geopolitical tension between the United States and the Soviet Union and their respective allies, the Western Bloc and the Eastern Bloc. The term '' cold war'' is used because the ...historians as playing a major role in theStrategic Arms Limitation Talks The Strategic Arms Limitation Talks (SALT) were two rounds of bilateral conferences and corresponding international treaties involving the United States and the Soviet Union. The Cold War superpowers dealt with arms control in two rounds of ta ...Treaties with the Soviet Union. The site is significant at the national level for its role in the Cold War and the advancements in technology that stemmed from the project.
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Military facilities on the National Register of Historic Places in North Dakota National Register of Historic Places in Cavalier County, North Dakota Anti-ballistic missiles of the United States Missile launchers {{NorthDakota-NRHP-stub