Three Gorges Dam
EnergyThe world's largest hydropower station by installed capacity, at 22.5 GW, and the main flood-control structure on the Yangtze.
The Danes secured control over the southern Virgin Islands of Saint Thomas, Saint John, and Saint Croix during the 17th and early 18th centuries. Sugarcane, produced by African slave labor, drove the islands' economy during the 18th and early 19th centuries. In 1917, the US purchased the Danish holdings, which had been in economic decline since the abolition of slavery in 1848.
The National Infrastructure Index maps the physical assets national life runs on — power stations and grids, water systems, ports, railways and airports, data networks, payment systems and launch sites. Each asset is placed in a Strategic Infrastructure capability group, so it can be read against the ratings in the National Capability index above.
Assets are chosen for how much of the economy and state depends on them and how hard they would be to replace. Each card records what the asset is, the category it belongs to, what it does and where it is.
Example assets. These twenty cards are modelled on China's most critical infrastructure and show on every nation page until each nation's own assets are mapped.
The world's largest hydropower station by installed capacity, at 22.5 GW, and the main flood-control structure on the Yangtze.
A 16 GW dam on the Jinsha River, built around sixteen 1 GW turbines, the largest single units in service.
A ±1,100 kV direct-current line carrying 12 GW more than 3,000 km from Xinjiang's power bases to the eastern grid.
China's first large commercial nuclear plant, in service since 1994, with much of its output sold to Hong Kong.
A canal carrying Yangtze basin water more than 1,400 km north from the Danjiangkou Reservoir to Beijing and Tianjin.
The 1,318 km trunk line between the two largest cities, opened in 2011 and one of the busiest high-speed routes in the world.
The world's busiest container port since 2010, including the automated Yangshan deep-water terminals.
The world's largest port by cargo tonnage, handling iron ore, crude oil and coal for the eastern industrial belt.
The capital's second international hub, opened in 2019 around one of the largest single terminal buildings in the world.
A 55 km bridge and undersea tunnel system linking the western and eastern shores of the Pearl River Delta, opened in 2018.
The 1,956 km line from Xining to Lhasa, crossing the Tanggula Pass at 5,072 m, the highest railway in the world.
One of eight national data centre hubs under the East Data, West Computing programme, hosting major cloud providers.
A 2,000 km quantum key distribution trunk line through Jinan and Hefei, completed in 2017 for secure government and bank links.
CIPS clears and settles cross-border payments in renminbi, launched in 2015 to extend the currency's international reach.
The coastal launch site for Long March 5 heavy-lift rockets, used for the Tiangong station modules and lunar and Mars missions.
China's first launch site, founded in 1958 in the Gobi Desert, and the base for every crewed Shenzhou mission.
The national satellite navigation system, providing global positioning and timing since 2020 from its Beijing control segment.
The world's largest known rare-earth deposit and the core of China's rare-earth mining and refining supply chain.
A weir and channel system built around 256 BC that still irrigates much of the Chengdu Plain's farmland.
China's leading maker of 3D NAND flash memory, central to the drive for a domestic semiconductor supply.
The National Development Index tracks the events that move a nation's capability — policy decisions, technological milestones, economic turns and external shocks — and places each one on the record with the date it happened and what followed from it. It is the narrative counterpart to the indices: where a rating says where the Virgin Islands stands, the index says how it arrived there.
Recent developments cover the current cycle, close enough that their consequences are still unfolding. Historical developments are the inflection points behind the present position — the decisions and events a reader needs in order to read the ratings above in context.
Some scholars date the earliest habitation of the islands by Arawakan-speaking peoples to as early as 1000 BC. This established the pre-Columbian population base of the archipelago.
The Kalinago, or Island Caribs, reached the islands around the mid-15th century AD. Their arrival displaced or overlaid earlier Arawakan-speaking settlement shortly before European contact.
On his second voyage Columbus became the first European thought to have seen the islands, naming them after the legend of Saint Ursula and the 11,000 virgins. The name endures as the basis of the territory's modern designation.
Spanish settlement began in 1555, followed by English and French settlers on St. Croix from 1625. There ensued a complex period in which the islands were disputed among Spain, France, Great Britain and the Netherlands.
During the 17th and early 18th centuries Denmark gained control of Saint Thomas, Saint John and Saint Croix, settling Saint Thomas in 1672 and purchasing Saint Croix from France in 1733.
The company established a settlement on St. Thomas in 1672 and on St. John in 1694. These footholds began more than two centuries of Danish control over the islands.
Sugarcane, produced by enslaved Africans, dominated the economy of the islands during the 18th and early 19th centuries.
Sephardi Jews settled on St. Thomas during the 18th century, forming one of the oldest Jewish communities in the Western Hemisphere. A sizeable Jewish community had begun forming across the islands during the 17th and 18th centuries.
The purchase of St. Croix from France completed the Danish holding of the three main islands. It brought the largest sugar island into the Danish sphere, and by 1741 English settlers on the island outnumbered Danes five to one.
Enslaved Africans took control of St. John and held it for half a year before Danish forces, aided by the French from Martinique, suppressed the revolt. More than a dozen ringleaders shot themselves rather than be recaptured, and the rising remains a defining episode in the islands' history.
In 1754 the islands passed from company to crown control and were formally named De dansk-vestindiske øer. They were held by Denmark–Norway until 1814 and then by the Kingdom of Denmark until 1917.
By 1775 it is estimated that enslaved people outnumbered Danish settlers by a ratio of 8:1. The demographic imbalance reflected the sugar plantation economy driven by enslaved African labour.
Following a slave rebellion on St. Croix, von Scholten proclaimed emancipation on 3 July 1848. The date is still celebrated as Emancipation Day, though strict labour laws imposed afterwards constrained the freed population.
The Danish West Indian rigsdaler gave way to the daler in 1849 as the colony's currency. The daler remained in use until the American period.
The 1867 hurricane and a separate earthquake and tsunami inflicted further damage on an already declining economy. Combined with the collapse of plantation profitability, these disasters left the colony dependent on transfers from the Danish state budget.
An 1867 treaty for the sale of St. Thomas and St. John to the United States was concluded but never brought into force. It marked the first serious American bid for the islands.
Repeated imposition of restrictive labour laws after emancipation culminated in the St. Croix labour riot of 1878. It marked the failure of the post-emancipation settlement to secure decent conditions for workers.
A draft treaty to sell the islands to the United States, negotiated in 1902, failed in the upper house on a tied vote after the opposition carried a 97-year-old life member into the chamber. Danish possession therefore continued for another fifteen years.
Fearing German seizure of the islands as a submarine base during the First World War, the United States agreed to buy them for $25 million in gold coin, while ceding political and economic interest in Greenland to Denmark. Danish voters approved the sale in a December 1916 referendum, and ratifications were exchanged on 17 January 1917.
English has predominated since the 1917 transfer from Denmark, displacing Dutch and Danish influence. Puerto Rican migration in the 1930s to 1950s later added a substantial Spanish-speaking population.
Soon after becoming a US territory in 1917 the islands formally accepted their first public library, with the St. Thomas Library opening in December 1920. The Carnegie Corporation of New York then funded library development between 1929 and 1933.
On 31 March 1917 the United States took possession of Saint Thomas, Saint John and Saint Croix, bought from Denmark for USD 25 million, acquiring holdings that had been in economic decline since the abolition of slavery. The territory was renamed the Virgin Islands of the United States, with a population of about 26,000, and Rear Admiral James H. Oliver became the first American governor. Transfer Day, 31 March 1917, is still commemorated annually.
Citizenship was extended to many inhabitants of the islands in 1927 and again in 1932. This incrementally integrated Virgin Islanders into the American polity.
Appointed by President Herbert Hoover, Pearson was inaugurated on 18 March 1931. His appointment ended the run of naval administration of the territory.
The Danish West Indian daler was withdrawn in favour of the US dollar in 1934. From 1935 to 1939 the islands also formed part of the United States customs area.
In December 2025 the Justice Department brought suit against the Virgin Islands over what it called unconstitutional practices regarding gun rights. The action highlighted the friction between territorial law and federal constitutional requirements.
A March 2023 poll found 63% of residents favoured the territory becoming a US state, with 23% opposed. The finding followed a 2016 UN Special Committee on Decolonization recommendation for a self-determination awareness campaign.
The 2020 census put the population at 87,146, down 18,989 from 2010. The sharp contraction reflected the refinery closure, fiscal crisis and hurricane damage.
Having been considered a tax haven since 2014, the Virgin Islands were placed on the EU tax haven blacklist in 2018. The listing affected the territory's international financial standing.
Category 5 Irma devastated St. John and St. Thomas in September 2017 and Maria ravaged all three islands two weeks later, with gusts to 137 mph on St. Croix. Congresswoman Stacey Plaskett's office reported 90% of buildings damaged or destroyed and 13,000 stripped of roofs.
A law of March 2017 introduced or raised taxes on alcohol, tobacco, sugary drinks, internet purchases and timeshare owners. It was a response to the territory's structural deficit and debt burden.
By early 2017 tax-supported debt had reached $2 billion, or $19,000 per capita, above Puerto Rico's level, with a structural budget deficit of $110 million. Since January 2017 the government has been unable to raise financing at favourable rates and had issued no new bonds as of June 2019.
The 1,500-acre complex was bought in 2016 and Limetree Bay Ventures was formed to refurbish and restart the refinery at up to 200,000 barrels per day. The project aimed to restore a pillar of the territorial economy.
The refinery closed in early 2012 and stopped exporting petroleum products in 2014; exports had been worth $12.7 billion in fiscal 2011. Manufacturing employment fell by half in May 2012 and GDP dropped 13% amid an 80% collapse in exports, while the tank farm continued as storage.
After forwarding the draft to Congress in May 2010 with Justice Department concerns that the powers sought exceeded territorial status, Obama signed a disapproving resolution on 30 June 2010 asking the convention to reconvene. The convention met in October 2012 but failed to produce a revised text by its 31 October deadline.
An act of 2004 called the fifth convention, whose 30 delegates were elected in 2007, and on 26 May 2009 it adopted a draft constitution. Governor John de Jongh Jr. rejected it in June 2009 as violating federal law and disregarding civil rights.
From 29 January 2007 the Supreme Court became responsible for appeals from the Superior Court. This completed a locally controlled judicial hierarchy applying both American common law and the Virgin Islands Code.
In 1996 fifty acres of Water Island, previously administered federally, were transferred to the territorial government. The remaining 200 acres were bought from the Department of the Interior in May 2005 for $10, completing the jurisdictional change.
Marilyn struck the territory in 1995, killing eight people and causing more than $2 billion in damage. Hurricanes Bertha, Georges, Lenny and Omar followed in 1996, 1998, 1999 and 2008 with less severe effects.
A 1993 referendum on political status drew only 31.4% turnout, so its result in favour of the status quo was considered void. The question of self-determination has remained unresolved since.
Hugo struck in 1989, inflicting severe physical and economic destruction, with St. Croix worst affected. It was the first of a sequence of damaging storms over the following decades.
The creole that emerged on the plantations in the late 17th or early 18th century declined as English spread in the early-mid 19th century. Its last speaker died in 1987 and the language is now considered extinct.
The law of 21 October 1976 authorised Virgin Islanders to organise a government under their own constitution, to be automatically approved if Congress did not act within 60 days. From 1976 the islands began work on drafting such a constitution.
In 1970 islanders elected Melvin H. Evans as governor rather than receiving a federal appointee. A territorial governor has been elected every four years since.
Construction started in 1966 on what became the Hovensa plant, eventually one of the world's largest petroleum refineries at 494,000 barrels per day. It contributed about 20% of the territory's GDP and was the largest private-sector employer.
Tourism, which began developing after the Second World War, surged from 1959 once Americans were barred from travelling to Cuba. It became the most important sector of the islands' economy.
The national park was created on St. John in 1956, protecting a large share of the island. It became a foundation of the territory's tourism appeal.
The 1954 Revised Organic Act reorganised the territory's government and remains its governing charter. The islands have since held five constitutional conventions without replacing it.
The Organic Act of 1936, revised in 1954, set up the framework of local government in the territory. The 1954 Revised Organic Act remains the basic instrument under which the Virgin Islands are organised.
The Danes secured control over the southern Virgin Islands of Saint Thomas, Saint John, and Saint Croix during the 17th and early 18th centuries. Sugarcane, produced by African slave labor, drove the islands' economy during the 18th and early 19th centuries. In 1917, the US purchased the Danish holdings, which had been in economic decline since the abolition of slavery in 1848.
none (territory of the US)
Transfer Day (from Denmark to the US), 31 March (1917)
Caribbean, islands between the Caribbean Sea and the North Atlantic Ocean, east of Puerto Rico
18 20 N, 64 50 W
Central America and the Caribbean
twice the size of Washington, DC
0 km
188 km
mostly hilly to rugged and mountainous with little level land
sun, sand, sea, surf
1 sq km (2011)
several hurricanes in recent years; frequent and severe droughts and floods; occasional earthquakes
important location along the Anegada Passage - a key shipping lane for the Panama Canal; Saint Thomas has one of the best natural deepwater harbors in the Caribbean
lack of natural freshwater resources
subtropical, tempered by easterly trade winds, relatively low humidity, little seasonal temperature variation; rainy season September to November
Capability-group ratings for Critical Technology are part of the GINC National Capability Framework rather than the country factbook. They are published in the National Capability index, and the per-capability detail lives on the capability pages.
2 (2013)
80,300 (2005)
30,000 (2009)
.vi
794 million kWh (2011 est.)
767.3 million kWh (2010 est.)
0 kWh (2012 est.)
0 kWh (2012 est.)
323,000 kW (2010 est.)
100% of total installed capacity (2010 est.)
0% of total installed capacity (2010 est.)
0% of total installed capacity (2010 est.)
0% of total installed capacity (2010 est.)
14,880 bbl/day (2012 est.)
0 bbl/day (2010 est.)
402,000 bbl/day (2010 est.)
0 bbl (1 January 2013 est.)
423,900 bbl/day (2010 est.)
106,100 bbl/day (2011 est.)
316,100 bbl/day (2010 est.)
5,732 bbl/day (2010 est.)
0 cu m (2011 est.)
0 cu m (2010 est.)
0 cu m (2011 est.)
0 cu m (2011 est.)
0 cu m (1 January 2013 est.)
18.59 million Mt (2011 est.)
75,800 (2010)
4,790 (2012)
defense is the responsibility of the US
104,170 (July 2014 est.)
-0.56% (2014 est.)
10.49 births/1,000 population (2014 est.)
8.24 deaths/1,000 population (2014 est.)
1.75 children born/woman (2014 est.)
-7.84 migrant(s)/1,000 population (2014 est.)
CHARLOTTE AMALIE (capital) 60,000 (2011)
28.9% (2002)
78.4%
NA
NA
NA
none
NA
none (territory of the US); there are no first-order administrative divisions as defined by the US Government, but there are three islands at the second order; Saint Croix, Saint John, Saint Thomas
22 July 1954 - the Revised Organic Act of the Virgin Islands functions as a constitution for this territory of the US (2013)
18 years of age; universal; note - island residents are US citizens but do not vote in US presidential elections
US common law
unicameral Senate (15 seats; members are elected by popular vote to serve two-year terms)
organized, unincorporated territory of the US with policy relations between the Virgin Islands and the US under the jurisdiction of the Office of Insular Affairs, US Department of the Interior
Democratic Party [Arturo WATLINGTON]//Independent Citizens' Movement or ICM [Usie RICHARDS]//Republican Party [Gary SPRAUVE]
NA
white field with a modified US coat of arms in the center between the large blue initials V and I; the coat of arms shows a yellow eagle holding an olive branch in its right talon and three arrows in the left with a superimposed shield of seven red and six white vertical stripes below a blue panel; white is a symbol of purity, the letters stand for the Virgin Islands
English 74.7%, Spanish or Spanish Creole 16.8%, French or French Creole 6.6%, other 1.9% (2000 census)
Protestant 59% (Baptist 42%, Episcopalian 17%), Roman Catholic 34%, other 7%
black 76.2%, white 13.1%, Asian 1.1%, other 6.1%, mixed 3.5% (2000 census)
about a dozen TV broadcast stations including 1 public TV station; multi-channel cable and satellite TV services are available; 24 radio stations (2009)
IOC, UPU, WFTU (NGOs)
none (territory of the US)
none (territory of the US)
2.2% (2003)
$NA
the US dollar is used
$NA
tourism, watch assembly, rum distilling, construction, pharmaceuticals, electronics
NA%
49,820 (2007 est.)
6.2% (2004)
Tourism, trade, and other services are the primary economic activities, accounting for roughly 57% of GDP and about half of total civilian employment in 2010. The islands hosted nearly 2.74 million visitors - 2.2 million cruise ship and 536,000 air passengers - in 2011. Industry and government each account for about one-fifth of GDP. The manufacturing sector consists of rum distilling, electronics, pharmaceuticals, and watch assembly. The agriculture sector is small, with most food being imported. The islands are vulnerable to damage from storms. The government is working to improve fiscal discipline, to support construction projects in the private sector, to expand tourist facilities, to reduce crime, and to protect the environment.
$1.577 billion (2004 est.)
2% (2002 est.)
$14,500 (2004 est.)
fruit, vegetables, sorghum; Senepol cattle
1 October - 30 September
$4.234 billion (2001)
refined petroleum products
$4.609 billion (2001)
crude oil, foodstuffs, consumer goods, building materials