When World War II broke out the United States Naval Construction Battalions (Seabees) did not exist. The logistics of a two theater war were daunting to conceive. Rear Admiral Moreell completely understood the issues. What needed to be done was build staging bases to take the war to the enemy, across both oceans, and create the construction force to do the work. Naval Construction Battalions were first conceived at Bureau of Yards and Docks (BuDocks) in the 1930s. The onset of hostilities clarified to Radm. Moreell the need for developing advance bases to project American power. The solution: tap the vast pool of skilled labor in the U.S. Put it in uniform to build anything, anywhere under any conditions and get the Marine Corps to train it. The first volunteers came skilled. To obtain these tradesmen, military age was waived to age 50. It was later found that several past 60 had managed to get in. Men were given advanced rank/pay based upon experience making the Seabees the highest paid group in the U.S. military. The first 60 battalions had an average age of 37.
Marpi Point Field or NAB Marpi Point is a former World War II airfield at the northern end of Saipan in the Northern Mariana Islands. The airfield was vacated by the United States in 1962; it is currently unused and overgrown.
Naval Advance Base Espiritu Santo or Naval Base Espiritu Santo, most often just called Espiritu Santo, was a major advance Naval base that the U.S. Navy Seabees built during World War II to support the Allied effort in the Pacific. The base was located on the island of Espiritu Santo in the New Hebrides, now Vanuatu, in the South Pacific. The base also supported the U.S. Army and Army Air Corps, U.S. Coast Guard, and US Marine Corps. It was the first large advance base built in the Pacific. By the end of the war it had become the second-largest base in the theater. To keep ships tactically available there was a demand for bases that could repair and resupply the fleet at advance locations, rather than return them to the United States. Prior to December 7th, Pearl Harbor was the U.S. fleet's largest advance base in the Pacific. Espiritu became capable of all aspects necessary to support the Fleet's operations from fleet logistics in fuel, food, and ammunition, to transport embarkation for combat operations or returning to the continental United States. The ship repair facilities and drydocks were capable of attending to most damage and routine maintenance. Had it not existed, ships would have had to return to Pearl Harbor, Brisbane, or Sydney for major repairs and resupply. The base became a major R and R destination for the fleet.
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. 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.
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.
Tinian Naval Advanced Base was a major United States Navy sea and air base on Tinian Island, part of the Northern Mariana Islands on the east side of the Philippine Sea in the Pacific Ocean. The base was built during World War II to support bombers and patrol aircraft in the Pacific War. The main port was built at the city and port of San Jose, also called Tinian Harbor. All construction was carried out by the Navy's Seabees 6th Naval Construction Brigade, including the main two airfields: West Field and North FieldUnited States Army Air Forces's long-range Boeing B-29 Superfortress bombers. The Navy disestablished the Tinian Naval Advanced Base on 1 December 1946.
Naval Base Noumea was a major United States Navy sea and air base at Nouméa, New Caledonia. Naval Base Noumea was built at Noumea Harbor. Noumea was picked for a naval base as it was beyond the range of Japanese land-based planes. Noumea is on the east side of the Coral Sea, 1,469 kilometres from Brisbane, Australia. The base was built during World War II to support the many ships and aircraft fighting and patrolling in the South West Pacific theatre of war as part of the Pacific War. Naval Base Noumea had an anchorage for large ships. Noumea was protected against submarine attack by a ring of islands and naval minefields. At its peak 50,000 troops were stationed at Naval Base Noumea. New Caledonia has been a colony of France since 1853. Nouméa is the capital city of New Caledonia. On November 8, 1942, US Navy South Pacific headquarters moved to Nouméa.
Peleliu Naval Base was a major United States Navy sea and airbase base on Peleliu island, one of sixteen states of Palau. The United States Marine Corps took the island in the Battle of Peleliu during World War II. Battle of Peleliu was a costly conflict that started September 15, 1944, and ended November 27, 1944. On September 30, 1944, Peleliu is declared occupied. The taking of Peleliu and Morotai gave the sea and air protection needed for the later invasion of the Philippines. US Navy Seabee built a number of facilities at Peleliu Naval Base.
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 Iwo Jima was a naval base built by United States Navy on the Japanese Volcano Island of Iwo Jima during and after the Battle of Iwo Jima, that started on February 19, 1945. The naval base was built to support the landings on Iwo Jima; the troops fighting on Iwo Jima; and the repair and expansion of the airfields on Iwo Jima. United States Navy Seabee built all the facilities on the island.
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 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.
Naval Base Kwajalein was United States Navy base built on Kwajalein Atoll, in the Marshall Islands to support the World War II efforts in the Pacific War. The base was built after the Battle of Kwajalein ended 3 February 1944. The US Navy built airfields, a seaport and a craft repair depot on the captured islands. The base was part of the vast Naval Base Marshall Islands.
US Naval Base Marianas was a number of United States Navy bases in the Mariana Islands in the Pacific Ocean's Micronesia. Most were built by the US Navy Seabees, Naval Construction Battalions, during World War II. Naval Base Guam was lost to the Empire of Japan during the Battle of Guam in December 1941. Guam was retaken by United States Armed Forces on July 21, 1944, now also known as Liberation Day. Naval Station Guam was founded on August 7, 1899, after Spain lost the Spanish–American War.
