Bounded by Fourth and Fifth Avenues and 94th Street, Fort Hamilton Plaza is dedicated to the local soldiers killed in World War I. The park takes its name from nearby Fort Hamilton, one the oldest continuously garrisoned federal military posts. Named after Alexander Hamilton (1755-1804), the distinguished colonial statesman and first Secretary of the Treasury, the base was erected between 1825 and 1831. During the Civil War (1861-1865), Fort Hamilton served as a training ground for volunteer New York State regiments. It later functioned as an embarkation and separation center during both World Wars and as the Military Entrance and Processing Station for New York City in the mid-1990s. Today over 200 Army Reserve and National Guard units are supported at Fort Hamilton.