Fort Oglethorpe, Georgia was a military facility in the US state of Georgia, in Catoosa County. After it was deactivated in 1947, its facilities formed the basis for the present town of Fort Oglethorpe, Georgia. During and after World War I, facilities at this fort were used to detain some 4,000 enemy military personnel as prisoners of war and civilian detainees, from 1917 through 1920.