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or is a United States Navy base in Yokosuka, Japan. Its mission is to maintain and operate base facilities for the logistic, recreational, administrative support and service of the U.S. Naval Forces Japan,
Seventh Fleet The Seventh Fleet is a numbered fleet of the United States Navy. It is headquartered at U.S. Fleet Activities Yokosuka, in Yokosuka, Kanagawa Prefecture, Japan. It is part of the United States Pacific Fleet. At present, it is the largest of t ...
and other operating forces assigned in the Western Pacific. CFAY is the largest strategically important U.S. naval installation in the western Pacific. Fleet Activities Yokosuka comprises 2.3 km2 (568 acres) and is located at the entrance of Tokyo Bay, 65 km (40 mi) south of Tokyo and approximately 30 km (20 mi) south of
Yokohama is the second-largest city in Japan by population and the most populous municipality of Japan. It is the capital city and the most populous city in Kanagawa Prefecture, with a 2020 population of 3.8 million. It lies on Tokyo Bay, south of ...
on the Miura Peninsula in the Kantō region of the Pacific Coast in Central
Honshu , historically called , is the largest and most populous island of Japan. It is located south of Hokkaidō across the Tsugaru Strait, north of Shikoku across the Inland Sea, and northeast of Kyūshū across the Kanmon Straits. The island separat ...
, Japan. The 55 tenant commands which make up this installation support U.S. Navy Pacific operating forces, including principal afloat elements of the United States Seventh Fleet, including the only permanently forward-deployed
aircraft carrier An aircraft carrier is a warship that serves as a seagoing airbase, equipped with a full-length flight deck and facilities for Carrier-based aircraft, carrying, arming, deploying, and recovering aircraft. Typically, it is the capital ship of a ...
, , the group she heads,
Carrier Strike Group Five Carrier Strike Group 5, also known as CSG 5 or CARSTRKGRU 5, is the U.S. Navy carrier strike group assigned to the United States Pacific Fleet and permanently forward deployed to the U.S. 7th Fleet. CSG 5 is responsible for unit-level trainin ...
, and
Destroyer Squadron 15 Destroyer Squadron 15 is a squadron of United States Navy ''Arleigh Burke''-class destroyers based at Yokosuka, Japan. History Destroyer Squadron Fifteen was founded in 1920 as a reserve fleet unit. The squadron was disestablished in 1922 and ...
.


History

When Commodore Matthew Perry arrived in Japan in 1853, using naval pressure to open up Japan to foreign trade, Yokosuka was a quaint, native fishing village. In 1860, Lord Oguri Kozuke-no-Suke, Minister of Finance to the Tokugawa Shogunate Government, decided that "If Japan is to assume an active role in world trade, she must have proper facilities to build and maintain large seagoing vessels." He called upon the French Consul General,
Léon Roches Léon Roches (September 27, 1809, Grenoble – 1901) was a representative of the French government in Japan from 1864 to 1868. Léon Roches was a student at the Lycée de Tournon in Grenoble, and followed an education in Law. After only 6 mo ...
, and asked for the assistance of the French government to build a shipyard and various basing facilities capable of handling large ships. French engineer
Léonce Verny François Léonce Verny, (2 December 1837 – 2 May 1908) was a French officer and naval engineerSims, Richard. (1998) ''French Policy Towards the Bakufu and Meiji Japan 1854-95: A Case of Misjudgement and Missed Opportunities,'' p. 246./ref> ...
was sent to Japan to accomplish the task. After the inspection of several sites, it was discovered that Yokosuka topographically, if on a smaller scale, resembled the port of
Toulon Toulon (, , ; oc, label= Provençal, Tolon , , ) is a city on the French Riviera and a large port on the Mediterranean coast, with a major naval base. Located in the Provence-Alpes-Côte d'Azur region, and the Provence province, Toulon is th ...
, France. It was decided to establish the shipyard here. It would be called the "Yokosuka Iron Works". In 1871, the name was changed to the "Yokosuka Navy Yard". It was French engineer
Louis-Émile Bertin Louis-Émile Bertin (23 March 1840 – 22 October 1924) was a French naval engineer, one of the foremost of his time, and a proponent of the "Jeune École" philosophy of using light, but powerfully armed warships instead of large battleships. ...
who reorganized "Yokosuka Navy Yard" completely from 1886. Yokosuka was to become one of the main arsenals of the Imperial Japanese Navy into the 20th century. Battleships such as ''Yamashiro'', and
aircraft carrier An aircraft carrier is a warship that serves as a seagoing airbase, equipped with a full-length flight deck and facilities for Carrier-based aircraft, carrying, arming, deploying, and recovering aircraft. Typically, it is the capital ship of a ...
s such as ''Hiryu'' and ''Shokaku'' were built there. Major naval aircraft were also designed at the
Yokosuka Naval Air Technical Arsenal had many names, each depending on the period of its existence, and the circumstances at that time. Many of the names were acronyms that were derived from its military name or designation, which changed from time to time. The arsenal was sometim ...
. In addition, numerous other facilities, including the headquarters of various naval units, administration buildings, military training schools, airfields, communication facilities, barracks, armories and a military hospital were established nearby in the course of its history, turning the area around the arsenal into a major fleet base. During World War II, activities at the Yokosuka Navy Yard reached their peak. By 1944, it covered and employed over 40,000 workers. In addition to the shipbuilding plant, the yard also had a gun factory, ordnance and supply depots, a fuel storage facility, a seaplane base and a naval air station.


U.S. Navy base

On 30 August 1945, Vice Admiral Michitaro Totsuka, last Japanese commander of the Yokosuka Naval District, surrendered his command to Rear Admiral
Robert Carney Robert Bostwick Carney (March 26, 1895 – June 25, 1990) was an Admiral (United States), admiral in the United States Navy who served as commander-in-chief of the North Atlantic Treaty Organization, NATO forces in Southern Europe (1951–1 ...
, and the base was peacefully occupied by
U.S. Marines The United States Marine Corps (USMC), also referred to as the United States Marines, is the maritime land force service branch of the United States Armed Forces responsible for conducting expeditionary and amphibious operations through co ...
of the
6th Marine Division The 6th Marine Division was a United States Marine Corps World War II infantry division formed in September 1944. During the invasion of Okinawa it saw combat at Yae-Take and Sugar Loaf Hill and was awarded a Presidential Unit Citation. The ...
, British
Royal Marines The Corps of Royal Marines (RM), also known as the Royal Marines Commandos, are the UK's special operations capable commando force, amphibious light infantry and also one of the five fighting arms of the Royal Navy. The Corps of Royal Marine ...
and U.S. Naval personnel. Commander Fleet Activities (COMFLEACT) Yokosuka was created shortly after the occupation in 1945. As the Base became organized, the shipyard was deactivated and much of the equipment was sent to other countries as part of reparations. The repair ship took charge of ship repair and maintenance, the hospital became a Naval
Dispensary A dispensary is an office in a school, hospital, industrial plant, or other organization that dispenses medications, medical supplies, and in some cases even medical and dental treatment. In a traditional dispensary set-up, a pharmacist dispense ...
(later
Naval Hospital Yokosuka Japan United States Naval Hospital Yokosuka Japan with its eight branch clinics are US Navy medical treatment facilities catering to the medical needs of eligible Sailors, Marines, Soldiers, Airmen, family members, U.S. government employees, retired mil ...
) and the Supply Department was organized to provide support to the fleet and shore-based activities. The Public Works Department was also established. Yokosuka Submarine Base was founded in September 1945. In May 1946, the Marines at Yokosuka were redesignated Marine Barracks, U.S. Fleet Activities, Yokosuka. In April 1947, the Ship Repair Department was organized, and the shops and dry docks were reactivated to maintain the ships of the U.S. Fleet in the Pacific. With the onset of the Korean War on 25 June 1950, Yokosuka Navy Base suddenly became very important and extremely busy. The U.S., still an occupying power in Japan, turned its full efforts to the support of South Korea. The Navy Dispensary was enlarged and expanded and was commissioned a U.S. Naval Hospital in 1950. The Naval Communications Facility, Yokosuka, was commissioned in January 1951. In April 1951, the Ship Repair Department became a component command. It was redesignated the Ship Repair Facility. As the major naval ship repair facility in the Far East, the Yokosuka Facility assumed a vital role in maintenance and repair of the U.S. Seventh Fleet during both the Korean War and Vietnam War. In March 1952, the geographical boundaries of
Naval Forces Far East A navy, naval force, or maritime force is the branch of a nation's armed forces principally designated for naval warfare, naval and amphibious warfare; namely, lake-borne, riverine, littoral zone, littoral, or ocean-borne combat operations and ...
were changed to exclude the Philippines,
Marianas The Mariana Islands (; also the Marianas; in Chamorro: ''Manislan Mariånas'') are a crescent-shaped archipelago comprising the summits of fifteen longitudinally oriented, mostly dormant volcanic mountains in the northwestern Pacific Ocean, bet ...
, Bonin and
Volcano Islands The or are a group of three Japanese-governed islands in Micronesia. They lie south of the Ogasawara Islands and belong to the municipality of Ogasawara, Tokyo, Tokyo Metropolis, Japan. The islands are all active volcanoes lying atop ...
. In December 1952, the headquarters were shifted from Tokyo to Yokosuka. The expanded Supply Department of Fleet Activities became Naval Supply Depot, Yokosuka in August 1952. In 1960, the Naval Communications Facility was redesignated U.S. Naval Communications Station, Japan. In 1952, occupation ended and rearmament commenced, with its naval forces formally organized as
Japan Maritime Self Defense Force , abbreviated , also simply known as the Japanese Navy, is the maritime warfare branch of the Japan Self-Defense Forces, tasked with the naval defense of Japan. The JMSDF was formed following the dissolution of the Imperial Japanese Navy (IJN) ...
by 1954. Some parts of the former Yokosuka Naval District were ceded back to house a new base for JMSDF. On 5 October 1973, , with
Carrier Air Wing Five Carrier Air Wing Five (CVW-5) is a United States Navy aircraft carrier air wing based at Marine Corps Air Station Iwakuni. The air wing is attached to the aircraft carrier . It was initially formed in 1943. It has participated in the Second Wor ...
and her accompanying task group, put into Yokosuka, marking the first forward deployment of a complete carrier task group in a Japanese port. This was the result of an accord reached on 31 August 1972 between the U.S. and Japan. In addition to the morale factor of dependents housed along with the crew in a foreign port, the move had strategic significance because it facilitated the continuous positioning of three carriers in the Far East at a time when the economic situation demanded the reduction of carriers in the fleet. In August 1991, ''Midway'' departed Yokosuka and was replaced by as the forward-deployed carrier in Yokosuka. In August 1998, relieved ''Independence'' as the 7th Fleet forward-based carrier. On 1 December 2005, the U.S. Navy announced that in 2008 ''Kitty Hawk'' would be replaced by the
nuclear-powered Nuclear power is the use of nuclear reactions to produce electricity. Nuclear power can be obtained from nuclear fission, nuclear decay and nuclear fusion reactions. Presently, the vast majority of electricity from nuclear power is produced b ...
. A U.S. Navy spokesman said the decision was a mutual agreement between the United States and Japan. Hiroyuki Hosoda, spokesman for Japan's government, said, "We believe that the change (of the carriers) will lead to maintaining the solid presence of the U.S. Navy and contribute to keeping Japan's security and international peace into the future." On 25 September 2008, ''George Washington'' arrived in Yokosuka, making it the only forward-deployed, nuclear-powered aircraft carrier in the U.S. Navy. In recent years, a number of high-profile international incidents involving U.S. sailors occurred around the base. The most notable were two murders which occurred in 2006 and 2008. The first was committed by Airman William Oliver Reese, who beat to death 56-year-old Yokosuka woman Yoshie Sato and stole the equivalent of $130 from her purse. The second murder was committed by Seaman Olantunbosun Ugbogu, a Nigerian citizen who had joined the U.S. Navy, but had not yet received citizenship. Ugbogu stabbed a taxi driver to death in order to avoid paying a $200 fare, which he had incurred returning from Tokyo. He had been stationed aboard the
guided missile cruiser A cruiser is a type of warship. Modern cruisers are generally the largest ships in a fleet after aircraft carriers and amphibious assault ships, and can usually perform several roles. The term "cruiser", which has been in use for several hu ...
, but was
absent without leave Desertion is the abandonment of a military duty or post without permission (a pass, liberty or leave) and is done with the intention of not returning. This contrasts with unauthorized absence (UA) or absence without leave (AWOL ), which ...
at the time of the murder and considered a deserter. Both murders resulted in the U.S. Navy severely restricting the liberty of all sailors in the fleet. Personnel and ships from the base assisted with
Operation Tomodachi was a United States Armed Forces (especially U.S. Forces Japan) assistance operation to support Japan in disaster relief following the 2011 Tōhoku earthquake and tsunami. The operation took place from 12 March to 4 May 2011; involved 24,000 U ...
following and during the March
2011 Tōhoku earthquake and tsunami The occurred at 14:46 JST (05:46 UTC) on 11 March. The magnitude 9.0–9.1 (M) undersea megathrust earthquake had an epicenter in the Pacific Ocean, east of the Oshika Peninsula of the Tōhoku region, and lasted approximately six minut ...
and
Fukushima I nuclear accidents The was a nuclear accident in 2011 at the Fukushima Daiichi Nuclear Power Plant in Ōkuma, Fukushima, Japan. The proximate cause of the disaster was the 2011 Tōhoku earthquake and tsunami, which occurred on the afternoon of 11 March 2011 and ...
. During the crisis, around 3,000 U.S. family members left the base, preferring to be outside Japan during a time of uncertainty.


Forward-deployed ships


Command ship

* – flagship, United States Seventh Fleet. 979 - Present


Aircraft carrier

* – flagship,
Carrier Strike Group Five Carrier Strike Group 5, also known as CSG 5 or CARSTRKGRU 5, is the U.S. Navy carrier strike group assigned to the United States Pacific Fleet and permanently forward deployed to the U.S. 7th Fleet. CSG 5 is responsible for unit-level trainin ...
.


Cruisers

* * *


Destroyers

Destroyer Squadron 15 Destroyer Squadron 15 is a squadron of United States Navy ''Arleigh Burke''-class destroyers based at Yokosuka, Japan. History Destroyer Squadron Fifteen was founded in 1920 as a reserve fleet unit. The squadron was disestablished in 1922 and ...
(COMDESRON 15) * * * * * * USS ''Shoup'' (DDG-86) * * *


Ships formerly forward-deployed

* 1958 – December 1968 * 1998 - 2006 * * * * 2008–2015 * 1998-2008 * 1991-1998 * 1997–2005 * * 1990–1996 * August 1992 – 2004 * March 1998 – 2005 * * August 1977 – July 1988 * May 1975 – July 1988 * 1973–1991 * March 1988–? 1995 * * August 1988 – July 1998 * October 1980 – October 1990 * 1983 – October 1990 * * * 1968 – August 1970 * 1968 – August 1970 * * * * * * * * * * * 1954–1968 * * * * * * 2007-2020 * * 2005 - 2019 * * * * * 1997 – 2021 *


Landmarks

During the late 1960s and 1970s, the Yokosuka Microwave Communications Site was part of the telephone communications network in the Tokyo area.Yokosuka-microwave-site-1969-1970.stevemcarthur.com
/ref> The building and 106.7 meter tall microwave tower was on the highest hill on the U.S. Navy base. Komatsu, a historic restaurant near the naval base, became famous for serving Japanese navy personnel before 1945 and the U.S. Navy after. However, it was destroyed by fire in 2016.


See also

* United States Fleet Activities Sasebo


References


External links


Navy Lodge Yokosuka
* * {{Coord, 35.2932, 139.671293, display=t
Fleet Activities Yokosuka or is a United States Navy base in Yokosuka, Japan. Its mission is to maintain and operate base facilities for the logistic, recreational, administrative support and service of the U.S. Naval Forces Japan, Seventh Fleet and other operating ...
Yokosuka Buildings and structures in Yokosuka, Kanagawa Japan Maritime Self-Defense Force bases 1870 establishments in Japan