Located southeast of Fairbanks, Alaska, Fort Greely is home to a United States Army launch site for anti-ballistic missiles. Built in 1942, Fort Greely was originally known as Big Delta Army Air Field. By 1949, it was decided it was going to be a permanent fixture of the US Army. Since it's opening, it has been used as a way to train soldiers to deal with the cold. This was true up until the end of the "Cold War." In 1995, Fort Greely was reassigned rather than closed.
That reassignment lasted less than a decade, however, as in 2002 Fort Greely was picked as a place to store (and possibly launch) intercontinental ballistic missiles. The army base is still responsible for some training efforts, however. The testing and training mostly takes place at Bolio Lake Range Complex, which is about 10 miles away from Fort Greely. This dual purpose of the army base is still happening today.
Because of its location in Alaska, Fort Greely has been a great place to test Army equipment (and soldiers) in low temperature settings. The army base had some tough times over the years, but it managed to stay open and is still useful today.