of the Army Transport Service. By this time, the US Army began to build new posts in Hawaii, the Philippines, and various other Pacific islands. Most of the materiel for those posts was shipped through San Francisco. By 1915, the three piers together with their associated warehouse had been completed, and Fort Mason Tunnel driven under Upper Fort Mason to connect with the railroad network along the Embarcadero. With these new facilities, Fort Mason was transformed from a harbor defense post into a logistical and transport hub for American military operations in the Pacific. The Army ferry provided scheduled transportation from Fort Mason to the processing center at Fort McDowell on Angel Island up to eight times per day during the war. was used to transport cavalry horses from Fort Mason's pier to Fort Mills. San Francisco Port of Embarkation (1932—1955) The San Francisco Port of Embarkation, a new command, was created on 6 May 1932 under Brigadier General Charles S. Lincoln with headquarters at Fort Mason assuming command over the Army Transport Service, the San Francisco General Quartermaster Depot at Fort Mason and the Overseas Replacement and Discharge Service at Fort McDowell, California. With the rest of the world at war since 1939, the U.S. Army began updating and improving facilities across the country, without however an improved budget. On 1 October 1940 Army Engineer Col John C. H. Lee was promoted to brigadier general, and named Commanding General, Pacific Ports of Embarkation. He set up shop at Fort Mason, and spent exactly a year improving Army port facilities from Seattle to San Diego. During World War II, Fort Mason became the headquarters of the San Francisco Port of Embarkation, controlling a network of shipping facilities that spread across the Bay Area. Thirteen installations in the San Francisco area beyond Fort Mason were part of the San Francisco POE. Oceangoing ships used 20 piers with 43 berths with the port having storage space of in warehouses, in transit sheds and of open space storage. Other facilities included the piers at Alameda, the Richmond Parr Terminals, an Air Force depot, the Emeryville Ordnance Shops, Hamilton Field for air shipments and the Presidio which included an animal depot. The Stockton Piers and the Humboldt Bay Piers were more distant elements of the port. The largest facility in the bay was what was to become the Oakland Army Base at the terminus