Leyte-Samar Naval Base
Leyte-Samar Naval Base was a large United States Navy 13 base in the Philippines on the Islands of Leyte and Samar. 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. 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 the 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 the Leyte Gulf from Tacloban. All construction was done by the Navy's Seabees. 
- Tacloban Naval station, on Casiguran Bay, was the Leyte-Samar headquarters, Fleet communication center, the fleet post office, Quonset hut barracks, a base dispensary with beds. After the first landing, existing buildings and warehouses were used for the headquarters and barracks. The Tacloban base and Port of Tacloban were at 11.250939, 124.992726 
- Tolosa base at Tolosa had a communication center for the Seventh Fleet and the Philippine Sea Frontier headquarters. Seabees built quonset hut barracks. The 6th, and 13th Air Force were also stationed at Tolosa. The Tolosa base was at .
- Jinamoc Seaplane Base was built on Jinamoc Island in 1944, five miles east of the Tacloban base. At first, a temporary seaplane ramp was built and later a steel and concrete ramp was built. Quonset hut barracks and dispensary were at the base. The Jinamoc Seaplane Base was near the city of Basey. The base closed in 1945. The Jinamoc Seaplane Base was at located .  
- Calicoan Naval Base was Calicoan Island. Calicoan Island is flat and is about a mile wide and 7 miles long. Stationed were 3,600 Troops. Calicoan Naval Base was a storage depot and general quartermaster station. For loading and unloading a 500-foot wood pier and a 500-foot pontoon pier were built. The port could handle seven cargo ships. For loading and unloading, landing ships LCTp a jetty was built that could hand;e five ships. Located at . 
- Guiuan Naval Base on Guiuan, Samar was built by the 93rd and 61st Seabees stated on December 1, 1944. Guiuan became a major base with a vast warehouse depot. Guiuan was the Seabees headquarters with an 80-acre construction depot. Many residents of the City of Guiuan were hired to work on the large base. 
- Guiuan Airport was a United States Navy air base built by Seabees of the 61st and 93rd Naval Construction Battalions. Seabees built the runway, the Guiuan strip, that opened December 18, 1944 at Guiuan Airport. Later a second runway was built. , now the
- Tubabao Base on Tubabao Island was used for unloading of supplies of ships. To get the supplies to Guiuan a wooden bridge was built. The bridge was 515 feet long and 22 feet wide. Tubabao Base was at
- Salcedo Base, a large PT-Boat base, with repair depot and three pontoon drydock, was built at Salcedo, Eastern Samar at . Salcedo Base housed 3,000 troops.
- Guiuan Naval hospital, the Seabees built a 3,000-bed hospital 5 miles north of the Guiuan Base to serve the base and ships. The 20,000-square-foot hospital had 311 buildings and 14 quonsets. Built at  .
- Ammunition depot was built north of the Guiuan Naval hospital, placing it away from all bases. A 20 miles road was built to connect the Ammunition depot to Guiuan.
- Manicani Base was on Manicani Island off Samar at the city of San Antonio. At Manicani base a ship repair base was built. Housing for 10,000 troops was built with, headquater, mess hall, 100-foot peir, 1,500-by-80-foot pier, a pontoon pier and support buildings. Off Manicani Island the USS Artisan (AFDB-1) and USS ABSD-5 worked. When it closed in 1945 all buildings were removed from the island. Located at 
- Fleet Recreation Centers were built at San Antonio, near the ship repair base and Osmeña, Marabut, Samar at . 
- Balusao water treatment plant for ship replenishment was built at near the Balusao, Samar on the Sungduan-Bolusao River at
- Bulusao Tank farm was built near Balusao at the North end San Pedro Bay, near the water treatment plant. Bulusao Tank farm stored fuel for the ships and base.
- Balangiga sawmill was built at the city of Balangiga at .
Before Leyte-Samar Naval Base was built the United States had to clear out the Imperial Japanese Armed Forces from the Philippines. The first main Naval event was the Battle of the Philippine Sea from June 19, 1944 to June 20, 1944. The next was the Battle of Leyte Gulf from October 23, 1944 to October 26, 1944. Battle of Leyte Gulf and Battle of the Philippine Sea were two of the largest naval battle in history. The Battle off Samar was part of the Battle of Leyte Gulf on October 25, 1944. The United States Army landed at Leyte on October 20, 1944, the start, of the Battle of Leyte. Major fighting ended on December 26, 1944.  On December 25, 1944, United States Seventh Fleet officially opened its headquarters in Leyte, with Task Group 72.7. Leyte-Samar Naval Base provided major logistic support for the Invasion of Lingayen Gulf on January 3, 1945. The base continued to grow and barracks ships APL-17 and APL-19 arrived in February 1945 to help with the housing shortage. On May 7, 1945, a large convoy depart the base at Ulithi, to move much of that base to Leyte-Samar Naval Base, taking operations closer the action. The convoy arrived on May 13. The second convoy depart May 19, this convoy included the floating drydock a 3,300-ton ARD-19. Also in May, the USS Ocelot (IX-110) arrived and was used a barracks ship for the quickly growing base. Many [[World War II United States Merchant Navy|Merchant Navy ships started to arrive with supplies. fuel and ammunition. The ammunition ships SS Bluefield Victory and USS Amador arrived with needed shore and ship ammunition. Also in May the USS Ajax (AR-6) a repair ship arrived and started repair work on ships, late repairing typhoon damaged ships. With many ships in the Pacific War for such a long time, Leyte-Samar Base became a major ship repair depot. More floating dry docks were added to the base including: ARD-15, ARD-18, ADR-23, ADR-25, AFDL-32, and AFD-17. In June 1945 the base had its peak population of 72,000 Troops. On July 27, 1945 the massive USS Artisan floating drydock was assembled in Leyte Gulf. Artisan was able to dry dock and repair the Navy's largest ships, like battleships. Much of the base was abandoned after the war in 1945. Leyte-Samar Base was part of a treaty in 1947" Agreement Concerning Military Bases, Manila, 14 March 1947. That noted that Leyte-Samar Naval Base could be used by the United States if determined to be required by a military necessity. In 1947 the base was abandoned.
- "HyperWar: Beans, Bullet and Black Oil [Chapter 29]". www.ibiblio.org.
- "HyperWar: Building the Navy's Bases in World War II [Chapter 29]". www.ibiblio.org.
- Building the Navy's Bases in World War II History of the Bureau of Yards and Docks and the Civil Engineer Corps 1940–1946. US Government Printing Office. 1947. p. 230.
- "NCB 93: Navy Base at Guiuan, Samar". www.seabees93.net.
- Maurer, Maurer (1983). Air Force Combat Units Of World War II. Maxwell AFB, Alabama: Office of Air Force
- "Chapter XXIX Bases in the Philippines". Retrieved 18 July 2014.
- US army LEYTE-SAMAR OPERATION
- "Page:United States Statutes at Large Volume 61 Part 4.djvu/671 - Wikisource, the free online library". en.wikisource.org.