Fort Greely is a United States Army installation located in Alaska, primarily used for missile defense operations. Established in 1949, it plays a crucial role in the nation's defense strategy, particularly in monitoring and intercepting potential missile threats. The base is home to the Ground-based Midcourse Defense system, which is designed to protect the U.S. from long-range missile attacks. Fort Greely's remote location and harsh climate provide a unique environment for testing and training related to missile defense technologies.