US Naval Advance Bases were built globally by the United States Navy during World War II to support and project U.S. naval operations worldwide. A few were built on Allied soil, but most were captured enemy facilities or completely new. Advance bases provided the fleet with support to keep ships tactically available with repair and supply depots of facilities, rather than return them to the continental United States. [1] Before Japan declared war on the United States the U.S. Navy had a single fleet-sized advanced base in the Territory of Hawaii at Naval Station Pearl Harbor. During the war the U.S. Navy Seabees built over 400 advance bases categorized by size. Naval bases were either Lions or Cubs while airfields were either Oaks or Acorns. Lions and Oaks were major facilities while Cubs and Acorns were minor. PT Boats typically would get a Cub and airfields with single runways were Acorns. The larger bases could provide refueling and overhaul; loading of troopship and cargo ships; and preparing amphibious assault ships. Some became major repair depots. The Seabees developed auxiliary floating drydocks were able to repair battle damage and do regular maintenance in the field saving ships trans-pacific trips for repair. A few bases also were developed to be R and R for all U.S. personnel. Most Advance Bases were built by the US Navy's Seabees in Naval Construction Battalions (CBs). At the start of the war civilian contractors were employed in construction. The Seabees in World War II built most of the airfields used by the United States Army Air Forces and United States Marine Corps, as they had the ships and cranes needed to transport the vast amount of equipment needed at the advance bases. The US Army and United States Coast Guard also operated out of many of these facilities. Seabees could build new or repair damaged runways, and with advancements in heavy bomber technology lengthen runways as needed. A few Naval Advance Bases were built for the Korean War and Vietnam War. [2] [3] [4]
Built at the bases were personnel housing, piers, roads, shops, power plants, water plants, along with large storage depots containing fuel, ammunition, food, and other consumable supplies. Fuel for ships, airplanes and vehicles was in much demand; 25,000,000 barrels of fuel was shipped to Pacific bases in just June 1945. During World War 2, in Guam alone one million gallons of aviation gasoline were needed each day. Over 325,000 Seabees troops built bases. The many bases were needed for the logistics needs of the troops around the world. [5] [6] On the home front many new ships and boats were built the West coast and East coast, Great Lakes and the Gulf of Mexico. Under the Emergency Shipbuilding Program and War Shipping Administration contracts went out to shipyards and Ironwork works companies across the country. Ports were needed for many new cargo ships to dock, like the: 2,710 Liberty ships and 531 Victory ships built, plus the many new tankers and new warships. In the South Pacific, Seabees operated coral pit mines, as crushed coral was used for runways, roads, sidewalks, and more. Many runways were built using steel Marston Mats. At some bases Seabees built sawmills, to produce local timber. Floating pile drivers were used to build piers, docks, and wharves. If pile driving was not suitable, a floating wharf was built. To protect ships and the ports, they needed to build and repaired quickly and runways. Sometimes Seabees set up electric generator lighting and worked around the clock to complete runways. For housing, offices, mess halls, and depots a vast number of quonset huts of different sizes were built. The Pacific island hopping campaigns, gave new work to be done each day. [7] [8] [9] [10]
At the end of World War 2, almost all of the bases were closed, many were abandoned. A vast amount of vehicles, supplies and equipment at the bases was deemed not needed and too costly to ship to the U.S. Bringing the gear home also would have hurt home front industries, as there was already a vast amount of military surplus. Much of the equipment was destroyed. Some was given to the local governments as a thank you for the land use. Some of the abandoned bases were used for local military, some turned into towns and ports, like Naval Advance Base Espiritu Santo. Some of the abandoned airfields turned into local and international airports, a post-war Seabees legacy.
The need for advance bases during World War II was so great, that in some cases some Pacific Ocean islands were too small for the demand. So in 1943, the US Navy created Service Squadrons. A Service Squadron was a small fleet of ships that acted as an advance base. A service squadron would have: tankers, Fleet oilers, Troopship-barracks ships, refrigerator ships, ammunition ships, supply ships, floating docks, different kinds of barges and repair ships. They provided diesel, ordnance, aviation fuel, food stuffs, and all other supplies.
Australia:
New Guinea:
(some bases shared with Australian)
For Korean War built:
For Vietnam War:
During World War I the Navy had overseas bases, they were not called Advance Bases.
Naval Base Saipan or Naval Advance Base Saipan or Naval Air Base Saipan was a United States Navy Naval base built during World War II to support Pacific Ocean theater of war and the many warships and troops fighting the war. The base was on the island of Saipan in the Northern Mariana Islands. The base was part of the Pacific island hopping campaign. The base construction started after the Battle of Saipan ended on July 9, 1944. US Naval Advance Base Saipan was constructed by the Seabees Naval Mobile Construction Battalions. The base was under the Commander Naval Forces Marianas. Saipan is 12 miles (19 km) long and 5 miles (8.0 km) wide. About 70% of the island was sugarcane cultivation at the start of the base construction. At the start of the Battle of Saipan, the island's population had about 30,000 Japanese troops and about 20,000 Japanese civilians. The city of Garapan was the administrative center for the Saipan governmental district.
Naval Base Trinidad, also called NAS Trinidad, NAS Port-of-Spain, was a large United States Navy Naval base built during World War II to support the many naval ships fighting and patrolling the Battle of the Atlantic. The fighting in the area became known as the Battle of the Caribbean. Naval Base Trinidad was located on the Island of Trinidad in West Indies of the Caribbean Sea.
Leyte–Samar Naval Base was a large United States Navy base in the Philippines on the Islands of Leyte, Samar and the San Pedro Bay. The base was built during World War II to support the many naval ships fighting and patrolling in the South West Pacific theatre of war as part of the Pacific War. A number of naval facilities were built on the east coast of Leyte island starting October 20, 1944. The first base was built at between the city of Tacloban and Anibong Point, a mile north of the city. Headquarters for the Seventh Fleet was built at Tolosa, 10 miles south of Tacloban on Leyte. The bases were on the large San Pedro Bay in Leyte Gulf which provided safe anchorage for many ships. Due to the lack of dry ground in Tacloban a second base was built on the east side of Leyte Gulf, on the south tip of Samar, on Calicoan Island and Tubabao Island. At Samar, a large Naval Depot was built to support the Pacific War. Samar was about 50 miles across Leyte Gulf from Tacloban. All construction was done by the Navy's Seabees.
Naval Base Milne Bay, also called Naval Advance Base Milne Bay, was new major United States Navy sea and airbase base built on Milne Bay in Milne Bay Province in south-eastern Papua New Guinea. By spring 1943, the build up of the US Navy to support the Pacific War had caused overcrowding at the ports on the east coast of Australia. To help, Seabees departed Naval Base Brisbane on June 19, 1943 to set up a new base in Milne Bay. Naval Base Milne Bay headquarters was at Ladava Navy Base. The Royal Australian Navy already had a small base in Milne Bay: HMAS Ladava. Australians were able to defend and keep Milne Bay in the Battle of Milne Bay in 1942. Naval Base Milne Bay was built during World War II to support the many ships and aircraft fighting and patrolling in the South West Pacific theatre of war. Ladava Navy Base provided a large protective US Navy fleet anchorage at Gahora Bay next to Ladava. At Naval Base Milne Bay, Seabees built a large Naval facility.
Naval Base Manila, Naval Air Base Manila was a major United States Navy base south of the City of Manila, on Luzon Island in the Philippines. Some of the bases dates back to 1898, the end of the Spanish–American War. Starting in 1938 civilian contractors were used to build new facilities in Manila to prepare for World War II. Work stopped on December 23, 1941, when Manila was declared not defendable against the Empire of Japan southward advance, which took over the city on January 2, 1942, after the US declared it an open city. US Navy construction and repair started in March 1945 with the taking of Manila in the costly Battle of Manila ending on March 2, 1945. Naval Base Manila supported the Pacific War and remained a major US Naval Advance Base until its closure in 1971.
Naval Base Okinawa, now Naval Facility Okinawa, is a number of bases built after the Battle of Okinawa by United States Navy on Okinawa Island, Japan. The naval bases were built to support the landings on Okinawa on April 1, 1945, and the troops fighting on Okinawa. The Navy repaired and did expansion of the airfields on Okinawa. United States Navy Seabees built or repaired the facilities on the island. The bases on Okinawa put the United States Armed Forces only 350 miles from Japan's home islands. Most facilities closed after the war, but some are still in use today by all branches of the United States Armed Forces.
Manus Naval Base was a number of bases built after the World War II Battle of Manus by United States Navy on the Manus Island and a smaller island just east, Los Negros Island in the Admiralty Islands chain. The major naval base construction started with the Los Negros landings on February 28, 1944. The Navy repaired and did the expansion of the airfields on the Admiralty Islands. United States Navy Seabee built or repaired the facilities on the islands. The large Manus Naval Base, also called the Admiralty Island base, supported United States Seventh Fleet, Southwest Pacific command, and part of the Pacific Fleet. The base was abandoned by the US Navy after the war.
Naval Base Brisbane was a major United States Navy base built in the early part of World War II at Brisbane, Queensland, Australia. At first, operated as a base for patrol aircraft and convoy escort aircraft to protect the last leg of the Pacific War to the Southwest Pacific. As the US Navy expanded in the island hopping campaign, Naval Base Brisbane expanded to include a submarine base, repair depot, seaplane base and other facilities. US Navy operations started on April 14, 1942, and ended after the war in 1945.
Naval Base Woodlark Island was a United States Navy base built during World War II on Woodlark Island on Papua New Guinea. The US Navy built a PT boat base, boat repair depot, and harbor facilities at the city of Guasopa to support the Pacific War in 1943. The Harbor facilities was also built to support the US Navy in building the Narewa Airfield on the island. The base was part of the New Guinea campaign.
Naval Base Finschhafen was a United States Navy base built during World War II at Finschhafen on the Huon Peninsula in Morobe Province of Papua New Guinea. The US Navy built a PT boat base, Dreger Harbor PT Boat Base, boat repair depot, and harbor facilities at Dreger Harbour and Langemak Bay to support the Pacific War in 1943. Harbor was also built to support the US Navy in building 6,000-foot Finschafen Airfield, also called Dreger Field, now Finschhafen Airport on the island. The base was part of the New Guinea campaign.
Naval Base Hollandia was a United States Navy base built during World War II at Humboldt Bay, near the city of Hollandia in New Guinea. The base was built by the US Navy Seabees during the Battle of Hollandia, starting on May 9, 1944. Later Naval Base Hollandia became a supply base to support the invasion of the Philippines that started on October 20, 1944. Naval Base Hollandia became an advance headquarter of the United States Seventh Fleet.
Naval Base Alexishafen was a United States Navy base built during World War II at Alexishafen, north of the city of Madang in New Guinea. The base was built by the US Navy Seabees starting June 13, 1944 as part of the New Guinea campaign of the Pacific War. The base was built at the request of the Seventh Amphibious Force of the United States Seventh Fleet to support the many boats patrolling the area. The US Navy built a boat repair depot including Auxiliary floating drydocks. The base was closed in January 28, 1945.
Naval Base Banika Island was a United States Navy base built during World War II on Mbanika Island in the Russell Islands, part of the Solomon Islands. A larger supply depot was built to support the ships fighting in the Pacific War. Also built were a repair base for landing craft, PT boats, and other boats. Banika Island offered excellent fleet anchorage. Banika Island was taken during the Solomon Islands campaign. Also at the base was built the Renard Sound Seaplane Base.
Naval Base Puerto Princesa, Naval Base Palawan, was a United States Navy base built during World War II at Puerto Princesa on Palawan Island, Philippines, after the Invasion of Palawan on February 28, 1945. Puerto Princesa Bay offered an excellent base for fleet anchorage. At the naval base, US Navy Seabees built: a seaplane base, carrier aircraft fighter plane repair depot, land airfield and other base facilities.
US Naval Base New Guinea was number of United States Navy bases on the island of New Guinea during World War II. Australia entered World War II on 3 September 1939, being a self-governing nation within the British Empire. The United States formally entered the war on 7 December 1941, following the attack on Pearl Harbor by the Empire of Japan. Following the attack on Pearl Harbor, Japan quickly took over much of the South Pacific Ocean. The United States lost key naval bases in the South Pacific, including Naval Base Manila and Naval Base Subic Bay, both lost in the 1941–42 invasion of the Philippines. Also lost were Naval Base Guam and Wake Atoll. As such, the United States Armed Forces needed new bases in the South West Pacific for staging attacks on Japan's southern empire. The United States built bases first in Australia, then in New Guinea.
The United States Navy held a number of bases in the Philippines Islands in the Pacific Ocean. Most were built by the US Navy Seabees, Naval Construction Battalions, during World War II. The US Naval Bases in Philippines were lost to the Empire of Japan in December 1941 during the Philippines campaign of 1941–1942. In February 1945 the United States Armed Forces retook the Philippines in the Battle of Manila in 1945. Before the captured US bases on Luzon were retaken the US Navy Seabees built a new large base, Leyte-Samar Naval Base, on the Philippine Island of Leyte, starting in October 1944.
US Naval Base Solomons was a number of United States Navy bases in the Solomon Islands in the Pacific Ocean. Most were built by the US Navy Seabees, Naval Construction Battalions, during World War II as part of the Pacific War. In August 1942 the United States Armed Forces took the Guadalcanal in the Solomon, in the Battle of Guadalcanal. US Navy Seabees built a new base at Guadalcanal, Naval Base Guadalcanal and then on other islands in the Solomons.
Naval Base Samoa, codename Operation Straw, was a number of United States Navy bases at American Samoa in the central Pacific Ocean. The bases were used during World War II to support the island hopping Pacific War efforts of the allied nations fighting the Empire of Japan.
Naval Base Hawaii was a number of United States Navy bases in the Territory of Hawaii during World War II. At the start of the war, much of the Hawaiian Islands was converted from tourism to a United States Armed Forces base. With the loss of US Naval Base Philippines in Philippines campaign of 1941 and 1942, Hawaii became the US Navy's main base for the early part of the island-hopping Pacific War against Empire of Japan. Naval Station Pearl Harbor was founded in 1899 with the annexation of Hawaii.
US Naval Bases in North Africa were sea ports and air base used in North Africa during World War II by the United States Navy. The ports and air bases supplied the troops of the Allies armies in the flight against German and Italian forces in the North African campaign and Western Desert campaign. Later the bases supported the invasion of Italy. The ports and airfields were used after their surrender in Operation Torch. Amphibious Training Bases (ATB) were built in Algeria and Tunisia to prepare for the upcoming invasions. Seabees, United States Naval Construction Battalions, did most of the repair work, new construction, and maintaining work at the bases.