considered complete and operational. The initial armaments consisted of six gun emplacements: Batteries Randol, Quarles, Ash, Powell, Brannon, and Vicars. Between 1905 and 1910, six additional gun emplacements were added: Batteries Benson, Tolles, Walker, Stoddard, Putnam, and Kinzie. When completed, Fort Worden had 41 artillery pieces, completing its point in the "Triangle of Fire": two 12-inch disappearing guns, two 12-inch barbette guns, two 10-inch disappearing guns, five 10-inch barbette guns, eight 6-inch disappearing guns, two 5-inch balanced pillar guns, four 3-inch pedestal guns, and sixteen 12-inch mortars. During World War I, the complement at Fort Worden was greatly expanded as soldiers arrived for training prior to being sent to European battlefields. To keep up with the demand, construction of new barracks and buildings continued throughout the war. 36 of 41 artillery pieces were dismantled and shipped to arsenals to be retrofitted for usage on European battlefields; many were never replaced. After World War I, the fort's staffing was reduced to 50 officers and 884 enlisted men. In its intended role, Fort Worden was obsolete soon after construction: the rapid advance in warship and gunnery design, as well as the advent of aircraft, quickly made fixed artillery positions ineffective and greatly diminished the role of coastal artillery in national defense. In the 1920s, an observation balloon hangar was built at Fort Worden at a cost of $85,000. During this time, some of the batteries were modernized to be made "bomb-proof." During World War II, Fort Worden remained the headquarters of the Harbor Defense Command and it was jointly operated by the Army and Navy. The fort was home to the 14th Coast Artillery Regiment of the U.S. Army, the 248th Coast Artillery Regiment of the Washington National Guard, the 2nd Amphibious Engineers, and miscellaneous U.S. Navy personnel. The Army operated radar sites and coordinated Canadian and U.S. defense activities in the Strait of Juan de Fuca and Puget Sound. The Navy, responsible for the detection and identification of all vessels entering and leaving Puget Sound, monitored new underwater sonar and sensing devices. Fixed anti-aircraft positions were installed behind Battery Benson and south of the mortar batteries. Fort Worden personnel also manned batteries and fire control towers at the Cape George Military Reservation, southwest of Port Townsend on the Strait of Juan de Fuca at the entrance to Discovery Bay. After World War II, the Coast Artillery units at Fort Worden were