 Several miles from the church, of wood lots and fields were almost immediately transformed into a complete city for 10,000 men with barracks and training buildings, named Camp Devens (later known as Fort Devens).Construction, commenced on June 19 by the largest labor force ever assembled in the United States, raced at the rate of 10.4 new buildings every day.By September 4, the military base was ready and the first draft inductees arrived.