Instruct: Given a question, retrieve relevant passages that answer the question.
Query: When was the Naval Base Subic Bay built?
On 8 March 1885, the Spanish Navy authorized construction of the Arsenal de Olongapo and by the following September, work started at Olongapo. Both the harbor and its inner basin were dredged and a drainage canal was built, as the Spanish military authorities were planning to make Olongapo and their navy yard an "island." This canal also served as a line of defense and over which the bridge at the base's Main Gate passes. When the Arsenal was finished, the gunboats Caviteño, Santa Ana, and San Quintín were assigned for its defense. To complement these gunboats, coastal artilleries were planned for the east and west ends of the station, as well as on Grande Island.
U.S. Naval Hospital, Subic Bay (also the Navy Regional Medical Center) was the main medical facility of the U.S. Naval Forces, Philippines. In 1992, after the Philippine government decided not to renew that agreement with the U.S. for bases, the Subic Bay Naval Base (along with Clark Air Force Base) were abandoned by the U.S.
Naval Air Station Cubi Point U.S. Naval Hospital, Subic Bay U.S. Naval Radio Facility Bagobantay U.S. Naval Station Sangley Point San Miguel Naval Communications Station Mount Santa Rita Naval Link Station
Grande Island and the remains of Fort Wint were incorporated into the U.S. Naval Base Subic Bay. The two disappearing guns of Battery Warwick were dismantled by the United States Navy in the 1960s and shipped to Fort Casey in Washington state for renovation and display. The four guns of Batteries Flake and Jewell were removed and divided between Forts Flagler and Casey in Washington state where they remain on display. The guns of Battery Hall remain in place (pictures right). Grand Island was operated for many decades after WW II by Subic Bay US Navy Special Services as an on base resort for US Military and Civilians stationed throughout the Philippines. It was accessible via a small landing craft type boat shuttle service at the pier adjacent to the Alava Carrier Pier in front of the HQ building at Naval Station Subic Bay. During Operation New Life, in 1975, thousands of Vietnamese refugees were sheltered and processed on Grande Island after the fall of Vietnam to North Vietnam. After that rescue mission, which lasted about six months, Grande Island was rehabilitated and was restored to its Special Services resort configuration until 1991. At that time the lease on US military bases expired, and the US bases were closed about the same time they were damaged by the eruption of Mount Pinatubo volcano. Grande Island was restored as a resort after repairs following damage from the Mount Pinatubo volcano eruption. It was restored by the civilian Philippine Subic Bay Free Port Zone Authority following the closure of the Subic Naval Base in 1992.
A military rest camp in Subic Bay in the Philippines – part of the U.S. Naval Base Subic Bay – is named in his honour, as is a street in Naval Station Pearl Harbor.
Because of the establishment of the Subic Bay Naval Reservation in November 1901 more troops were assigned to Subic. When the Samar force returned at the beginning of March 1902, its personnel were divided between Olongapo and Cavite. Cavite, however, still continued to have the largest number of Marines anywhere in the Philippines and continued to be the headquarters of the U.S. Navy because of its proximity to Manila.
The freshly arrived Marines were assigned to provide land defense for Subic Bay.[4] Seaward defenses included the batteries at Fort Wint on Grande Island and a minefield, which had been laid off the entrance to Subic Harbor. As the Marines built beach defenses, Consolidated PBY-4 Catalinas from VP101 and VP-102 of Patrol Wing 10,[5] which was stationed at Subic Bay, were conducting daily patrols off Luzon as a response to rumors that the Japanese were approaching the Philippines. On 11 December, seven Catalinas had just returned from patrol when Japanese Zeroes appeared and strafed the aircraft. One ensign was killed and all Catalinas sank to the bottom of Subic Bay's inner basin.
Subic Bay is part of Luzon Sea on the west coast of the island of Luzon in Zambales, Philippines, about 100 kilometers northwest of Manila Bay. Formerly the U.S. Naval Base Subic Bay, it is now the location the Subic Bay Freeport Zone (SBF) managed by the Subic Bay Metropolitan Authority (SBMA). The bay is surrounded by the town of Subic and Olongapo City, both in the province of Zambales and the town of Morong in the province of Bataan in the east. The mountain ranges around the bay area and the deep natural harbor provide a protected anchorage, naturally sheltered from typhoons. The harbor is up to 13.7 meters covering a total area of 41 hectares.
In September 1762, the British invaded the Philippines and took over the Spanish main naval base in Manila Bay. This prompted the Spanish military to scout for the next promising naval station. The expedition returned with the good news for the naval command - a natural bounty and deep waters at Subic Bay. King Alfonso XII issued a decree in 1884 that declared Subic as "a naval port and the property appertaining thereto set aside for naval purposes." Construction of an arsenal and ship repair yard ensued March 8 the following year, as ordered by the new settlers' Naval Commission. Subic Bay's potential as naval station was realized by the Americans. Commodore George Dewey and his men engaged in a battle that destroyed the Spanish Army in 1898, and the Americans took over Subic Bay on December 10, 1899.
The Port of Subic is the nearest seaport in Subic. The Port is operated and managed by the Subic Bay Metropolitan Authority (SBMA). It covers the fenced area of the former U.S. Naval Base Subic Bay located in the south-west of Luzon Island in the Philippines. Local fish port is also present at the coastal waters and some are in beach side.
U.S. Naval Hospital at Subic Bay was opened on 13 July 1956 as U.S. Naval Station Hospital, Subic Bay. In January 1973, the hospital expanded its command scope, adding the dispensaries at Naval Station Subic Bay, Naval Air Station Cubi Point, Naval Communication Transmitting Facility, Capas in Tarlac, and the Joint Military Group Manila. On 7 March 1977, the Hospital was designated as a "Regional Medical Center". On 1 August 1983, the Naval Medical Command, Pacific Region, Hawaii became the Subic Bay U.S. Naval Hospital's parent command. In 1989, the U.S. Navy Medical command was reorganized and the hospital began to report directly to the Commander, U.S. Naval Forces, Philippines.
Subic Bay's famous strategic location, sheltered anchorages, and deep water had first been made known when the Spanish explorer Juan de Salcedo reported the bay's existence to the Spanish authorities upon his return to Manila after Salcedo arrived in Zambales to establish the Spanish crown. It would be a number of years before the Spanish would consider establishing a base there.
In 1542, Spanish conquistador Juan de Salcedo sailed into Subic Bay but no port developed there because the main Spanish naval base would be established in the nearby Manila Bay. When the British captured this base in 1762, the Spanish were forced to find an alternate location and Subic Bay was found to be a strategic and superb port location. In 1884, King Alfonso XII of Spain decreed that Subic was to become "a naval port and the property appertaining thereto set aside for naval purposes."
The Americans captured the Spanish base in 1899 during the Philippine–American War, and controlled the bay until 1991. During this period, the naval facilities were greatly built up and expanded, including a new naval air station that was built in the early 1950s by slicing the top half from a mountain and moving the soil to reclaim a part of Subic Bay. In 1979, the area under American control was reduced from to when the Philippines claimed sovereign rule over the base. The presence of the American forces precipitated the start of a red-light district.
Subic Bay Freeport Zone (SBFZ), which is known simply as Subic Bay or Subic is a special economic zone covering portions of Olongapo City and the towns of Subic in Zambales and Morong and Hermosa in Bataan.It is the Philippines' first successful case of a military base converted through volunteerism into a tax and duty-free zone, operated and managed by the Subic Bay Metropolitan Authority or SBMA. It covers the fenced area of the former U.S. Naval Base Subic Bay located in the southwest of Luzon Island in the Philippines.The harbor faces the Zambales Mountain Range to the west and the Subic Bay opening to the South China Sea. It is northwest of the Bataan Peninsula and southeast of Zambales Province. 
Cavite, which had been home to most of the Spanish fleet in the Philippines, suffered from unhealthy living conditions and was vulnerable in time of war and bad weather because of its shallow water and lack of shelter. Therefore, a military expedition was sent to Subic Bay in 1868 with orders to survey the bay to find out if it would be a suitable site for a naval yard. The Spanish explored the entire bay and concluded that it had much promise and thus reported their findings to Cavite. This report was not well received in Manila, as the Spanish command was reluctant to move to the provincial isolation of Subic. Finally, in 1884, a Royal Decree declared Subic Bay as a naval port.
By the morning of 16 June, when the eruption subsided, Subic Bay lay buried under 1 foot (0.30m) of rain-soaked, sandy ash.
In the Philippines, Rear Admiral Patricio Montojo, realizing that Subic Bay would provide a more defensible position than Cavite, ordered his smaller ships and the batteries in Manila Bay to resist Dewey's fleet and deny them the entrance to Manila Bay. His other units would then use Subic Bay as a sally port, with which he could attack the American fleet's rear and cut off its supplies. On 26 April, Montojo arrived at Subic Bay aboard Reina Cristina with seven other ships.
In 1900, the General Board of the United States Navy made a thorough study of the naval base building program and decided that the American fleet in the Philippines could be easily bottled up in either the Manila or Subic bays. They instead recommended Guimaras Island, south of Manila, as the most suitable site for the main American naval base in the Philippines. Admiral of the Navy George Dewey and Admiral George C. Remey, Commander of the Asiatic Fleet, disagreed. They thought Subic Bay held the greatest potential.
"Amycus "remained in Lingayen Gulf through 26 June, when she sailed for Subic Bay in the Philippine Islands. Upon her arrival there, the ship operated under Service Squadron 3 at the naval base at Subic Bay. The Japanese surrender in August found "Amycus" still providing services at Subic Bay. She remained there until 27 October, when she shaped a course for the United States.
The Washington Naval Treaty of 1922 called for the limitation of naval armaments and included provisions that facilities for the repair and maintenance of American naval forces in the Philippines would be reduced. Shops were dismantled at the navy yard at Subic Bay and Fort Wint was reduced to caretaker status and personnel levels were cut.
The US Navy began using the base in Subic Bay in 2015 to deliver materiel and personnel for annual joint military exercises.[24] Some 6,000 US personnel came to Subic in April, and returned for exercises in 2016 in agreement with Philippine authorities.[25] US ships have used Subic Bay as a resupply port during routine calls.[26]
The Port of Subic Bay is in the Subic Bay Freeport Zone, the former U.S. Naval Base Subic Bay, on Subic Bay in the Philippines. It is one of the busiest, largest, historical and most important of ports in the Philippines. The Port is operated and managed by the Subic Bay Metropolitan Authority (SBMA).
The board requested an appropriation of $1million ($27040000 in 2018 dollars) to begin building the naval station. President Theodore Roosevelt, a strong supporter of the establishment of a naval station at Subic Bay, issued an Executive Order establishing the Subic Bay Naval Reservation.
Subic Bay was designated Naval Advance Unit No. 6, and become a submarine and motor torpedo boat base shortly after the Philippines were liberated. USS<i>Fulton arrived on 11 February 1945 and found Subic Bay " ...a primitive, humid, unhealthy, desolate Siberia far from the pleasant climate, facilities, and girls of Australia... ".[6] A Naval Supply Depot was established at Maquinaya, about 3 miles (5km) from the main base in July 1945. A new town of Olongapo was built to replace building burned by the retreating Japanese and provide housing for Filipino civilians employed at the base. Olongapo and its 9,000 Filipino residents remained under United States Navy administration when the remainder of the Philippines became independent on 4 July 1946.[7]
Naval Base Subic Bay was a major ship-repair, supply, and rest and recreation facility of the Spanish Navy and subsequently the United States Navy located in Zambales, Philippines. The base was 262 square miles, about the size of Singapore.[1] The Navy Exchange had the largest volume of sales of any exchange in the world, and the Naval Supply Depot handled the largest volume of fuel oil of any navy facility in the world.[2] The naval base was the largest overseas military installation of the United States Armed Forces after Clark Air Base in Angeles City was closed in 1991.[3] Following its closure in 1992, it was transformed into the Subic Bay Freeport Zone by the Philippine government.