User:Pgrig/Fort Warren Section

The Modern Period: 1895-1947
Fort Warren remained active through the Spanish-American War and World War I. The fort was modified in the late 1890s through the beginning of the twentieth century to accommodate the newer rifled ordnance then being developed for coastal defense. During World War II, the fort served as a control center for Boston Harbor's south mine field, a precaution taken in anticipation of potential attacks by Kriegsmarine U-boats. At that time, Fort Warren was staffed by personnel of the 241st Coast Artillery (Harbor Defense), a Massachusetts National Guard unit that was federalized in September, 1940. Fort Warren was permanently decommissioned after 1947.