Diego Gracia is an atoll.
The atoll is approximately 1,800 nautical miles (3,300 km) east of the coast of Africa, 1,200 nautical miles (2,200 km) south of the southern tip of India and 3,467 nautical miles (6,400 km) west of Darwin, Australia.
Mauritius sought to regain sovereignty, lost just before independence in 1968, over the Chagos Archipelago. Forty years ago its population, then numbering some 2,000 people, were expelled by the British government to Mauritius and Seychelles to allow the United States to establish a military base on the island. Today the exiled Chagossians are still fighting to go back to their homeland, claiming that the forced expulsion and dispossession (see Depopulation of Diego Garcia) was illegal.
Strategic Air Command began deploying Boeing B-52 Stratofortress bombers and aerial refueling aircraft to the newly completed airfield facilities in 1987.
Following the Iraqi invasion of Kuwait in August 1990, three ships of COMPSRON 2 sortied, delivering a Marine Expeditionary Brigade to Saudi Arabia to defend that kingdom and ultimately liberate Kuwait from Iraqi occupation. Other COMPSRON 2 ships offloaded the munitions, bombs, and fuel on Diego Garcia that were required for the US bomber fleet that deployed to airfield. Subsequently, B-52G bombers flew more than 200 17-hour bombing missions over 44 days and dropped more than 800,000 short tons (730,000,000 kg) of bombs on Iraqi forces in Iraq and Kuwait. One of the B-52s crashed from mechanical failures just north of the island with the loss of three of its six-man crew.
Beginning on 7 October 2001, the US again commenced military operations from Diego Garcia using B-1, B-2, and B-52 bombers to attack enemy targets in Afghanistan following the attacks on New York City and the Pentagon
Naval Support Facility Diego Garcia
The Naval Support Facility Diego Garcia provides Base Operating Services to tenant commands located on the island. The command's mission is "To provide logistic support to operational forces forward deployed to the Indian Ocean and Persian Gulf AORs in support of national policy objectives."
As of January 2012, the facility supported the following tenant commands:
Maritime Pre-Positioning Ships Squadron TWO
Branch Health Clinic
NCTAMS Pacific Det Diego Garcia
Naval Mobile Construction Battalion Detachment
Naval Media Center Detachment Diego Garcia
Military Sealift Command Office Diego Garcia
Mission Support Facility
FISC Yokosuka
NAVFAC FE
36 MXG Pacific Air Force
Det 1, 715th AMOG (AMC)
AFSPC Det 2, 22nd Space Operations Squadron (ARTS & GPS)
AFSPC Det 2, 18th Space Surveillance Squadron (GEODSS)
Additionally, the USS Emory S. Land (AS-39) is forward deployed to Diego Garcia.
US pre-positioned vessels
The atoll shelters the ships of the US Marine Pre-positioning Squadron Two. These ships carry equipment and supplies to support a major armed force with tanks, armoured personnel carriers, munitions, fuel, spare parts and even a mobile field hospital. This equipment was used during the Persian Gulf War, when the squadron transported equipment to Saudi Arabia.
The ship composition of MPSRON TWO is dynamic. During August 2010 it was composed of:
MV Capt. Steven L. Bennett (T-AK-4296)
USNS SGT William R. Button (T-AK-3012),[114]
MV SSG Edward A. Carter, Jr. (T-AK-4544),[115]
MV Maj. Bernard F. Fisher (T-AK-4396)
USNS Lawrence H. Gianella (T-AOT-1125)
USNS SGT Matej Kocak (T-AK-3005),[116]
USNS 1st LT Baldomero Lopez (T-AK-3010),[117]
MV LTC John U. D. Page[118]
USNS GYSGT Fred W. Stockham (T-AK-3017)
Five of these vessels carry supplies for the US Marine Corps sufficient to support a Marine Air-Ground Task Force for 30 days: USNS Button, USNS Kocak, USNS Lopez, USNS Stockham, and USNS Fisher.
Prior to 2001, COMPSRON 2 consisted of up to 20 ships, including four Combat Force Ships which provided rapid-response delivery of equipment to ground troops in the US Army. Three are Lighter aboard ships (LASH) which carry barges called Lighters that contain Army ammunition to be ferried ashore: MV American Cormorant, SS Green Harbour, (LASH), SS Green Valley, (LASH), MV Jeb Stuart, (LASH). There were Logistics Vessels to service the rapid delivery requirements of the US Air Force, US Navy and Defense Logistics Agency. These included container ships for Air Force munitions, missiles and spare parts; a 500-bed hospital ship, and floating storage and offloading units assigned to Military Sealift Command supporting the Defense Logistics Agency, and an offshore petroleum discharge system (OPDS) tanker ship. Some ship names were MV Buffalo Soldier, MV Green Ridge, pre-position tanker USNS Henry J. Kaiser, and tanker USNS Potomac (T-AO-181).
Satellite and Communication Facilities
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Air Force Satellite Control Network station
The US Air Force operates a Remote Tracking Station on Diego Garcia. Its call sign is REEF. This facility became more vital after the closure of the Indian Ocean Station in 1996.
GEODSS Station
Diego Garcia GEODSS station.
The US Air Force Operates a station of the Ground-based Electro-optical Deep Space Surveillance system on the southern end of the atoll.[citation needed]7.41173°S 72.45222°E
Global Positioning System monitoring station
Diego Garcia is one of the five control bases for the Global Positioning System, operated by the United States military. The US Air Force also has monitoring stations in Hawaii, Kwajalein, Ascension Island, and Colorado Springs. The stations synchronise and update the atomic clocks on the 24 orbiting satellites that emit the signals used by GPS receivers. 7.26654999°S 72.36312094°E.
HF Global station
The US Air Force operates a High Frequency Global Communications System transceiver site located on the south end of the atoll near the GEODSS station. The transceiver is operated remotely from Joint Base Andrews and locally maintained by NCTS FE personnel.
Naval Computer and Telecommunications Station Far East Detachment Diego Garcia
Naval Computer and Telecommunications Station Far East Detachment Diego Garcia operates a detachment in Diego Garcia. This detachment provides base telephone communications, provides base network services (Local Network Services Center), pier connectivity services, an AN/GSC-39C SHF satellite terminal, operates the Hydroacoustic Data Acquisition System, and performs on-site maintenance for the remotely operated Air Force HF-GCS terminal.
Naval Security Group detachment Diego Garcia was disestablished on September 30, 2005. Remaining essential operations were transferred to a contractor. The large AN/AX-16 High Frequency Radio direction finding Circularly Disposed Antenna Array has been demolished, but the four satellite antenna radomes around the site remain as of 2010.
ETOPS emergency landing site
Diego Garcia may be identified as an ETOPS (Extended Range Twin Engine Operations) emergency landing site (en route alternate) for flight planning purposes of commercial airliners. This allows twin-engine commercial aircraft (such as the Airbus A330, Boeing 767 or Boeing 777) to make theoretical nonstop flights between city pairs such as Perth and Dubai (9,013.61 km/5,600.80 mi), Hong Kong and Johannesburg (10,658 km/6,623 mi) or Singapore and São Paulo (15,985.41 km/9,932.87 mi), all while maintaining a suitable diversion airport within 180 minutes' flying time with one engine inoperable.
Space shuttle
The island was one of 33 emergency landing sites worldwide for the NASA Space Shuttle. None of these facilities were ever used throughout the life of the shuttle program.
Cargo service
From 2004 to 2009, MV Baffin Strait transited between Singapore and Diego Garcia once a month.
All consumable food and equipment is brought to Diego Garcia by sea or air, and all non-biodegradable waste is shipped off the island as well. From 1971 to 1973, US Navy LSTs provided this service. Beginning in 1973, civilian ships were contracted to provide these services. From 2004 to 2009, the US-flagged container ship MV Baffin Strait, often referred to as the "DGAR shuttle," delivered 250 containers every month from Singapore to Diego Garcia.[123] The ship delivered more than 200,000 tons of cargo to the island each year." On the return trip to Singapore, it carried recyclable metals.
In 2004, TransAtlantic Lines outbid Sealift Incorporated for the transport contract between Singapore and Diego Garcia.
The route had previously been serviced by Sealift Inc.'s MV Sagamore, manned by members of American Maritime Officers and Seafarers' International Union. TransAtlantic Lines reportedly won the contract by approximately 10 percent, representing a price difference of about US$2.7 million. The Baffin Straits charter ran from January 10, 2005 to September 30, 2008 at a daily rate of US$12,550.
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