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106-409: All power plants are fuelled by natural gas while standby fuel is distilled oil. Gas is supplied from Bạch Hổ oil field and Nam Con Son Basin 's gas fields. The Phú Mỹ 1 power plant is a combined cycle plant operated by Vietnam Electricity . It is equipped by three gas turbines with output capacity of 240 MW each and with a steam turbine with output capacity of 360 MW. Its full capacity

212-505: A Cenozoic sedimented cover. The heterogeneous basement is composed of quartz diorite , granodiorite and Mesozoic metamorphic rocks . While the Pre-Tertiary basement shows an assemblage of volcanic, igneous and metasedimentary rocks . At various levels in the basement, faults cause subsidence troughs . The cover is divided into the three sequences: The upper sequence consist of clastic and coastal marine carbonates from

318-624: A plantation economy to promote export of tobacco , indigo , tea and coffee . However, they largely ignored the increasing demands for civil rights and self-government . An increasing dissatisfaction, even led to half-hearted, badly co-ordinated, and still worsely executed plots to oust the French, like the infamous Hanoi Poison Plot of 1908. A nationalist political movement soon emerged, with leaders like Phan Bội Châu , Phan Châu Trinh , Phan Đình Phùng , Emperor Hàm Nghi , and Hồ Chí Minh fighting or calling for independence. This resulted in

424-655: A unitary socialist state under the Communist Party of Vietnam (CPV) in 1976. An ineffective planned economy , a trade embargo by the West , and wars with Cambodia and China crippled the country further. In 1986, the CPV initiated economic and political reforms similar to the Chinese economic reform , transforming the country to a socialist-oriented market economy . The reforms facilitated Vietnamese reintegration into

530-457: A $ 99 million loan and Nippon Export and Investment Insurance provided additional political risk coverage. A $ 170 million loan was provided by the syndicate of Bank of Tokyo-Mitsubishi , Crédit Agricole Indosuez , Crédit Lyonnais , Fortis Bank , and Mizuho Corporate Bank . In 2010, BP sold the plant together with its other assets in Vietnam to TNK-BP. The Phú Mỹ 4 is power plant

636-536: A chief justice, is the country's highest court of appeal , though it is also answerable to the National Assembly. Beneath the Supreme People's Court stand the provincial municipal courts and many local courts . Military courts possess special jurisdiction in matters of state security . Vietnam maintains the death penalty for numerous offences. In 2023, a three-person collective leadership

742-643: A composition of siltstones, friable claystones, and grey calcareous clays intercalated with white or light yellow quartz sandstone. This layer is also rich in carbonate and contains glauconite. Overall, the Bien Dong Formation has a lithological description of shale and claystone interbedded by thin laters of sandstone, rich organic matters and fossils. Extension resulted in the development of NE-SW trending half graben which later lead to rift filled sequence. These half graben were then continuously filled by basin wide deposition of fluvial sediment from

848-607: A good local and regional seal. The regional seal are the Lower Miocene shelf mudstones located in the south east Nam Con Son Basin there is a potential for both structural and stratigraphical traps . The trapping styles are dominantly three-way dip and fault, and two-way drip and two faults, closures. Vietnam in ASEAN  (dark grey) Vietnam , officially the Socialist Republic of Vietnam ,

954-579: A large carbonate reef buildup and infilled by sandy turbidites. Major transgression caused the depositional process to be interrupted in the early Pliocene. The Nam Con Son Basin has an oil prone source rock, with a dominance of kerogen . Hydrocarbon was found in the Dai Hung field and the Dua field during explorations in the 1970s and 1980s with sequence clastic reservoirs containing structural traps style of fault-segmented four-way dip anticlines occurring in

1060-569: A maximum of 10 km. While a majority of the basin is situated in less than 200 meters of shallow water, the bathymetry can go to deeper than 2000 meters to the north of the Nam Con Son Basin. The Nam Con Son Basin was developed during the Tertiary by complex rifting of a poorly known basement . The geological formation of Nam Con Son Basin can be separated into two major structural elements: A Pre-Cenozoic strata basement and

1166-740: A modern independent Vietnam. But the Provisional Government of the French Republic did not act on these requests, including the idea of independence, and dispatched the French Far East Expeditionary Corps to restore colonial rule. This resulted in the Việt Minh launching a guerrilla campaign against the French in late 1946. The resulting First Indochina War lasted until July 1954. The defeat of French colonialists and Vietnamese loyalists in

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1272-527: A presence there after several violent encounters with the locals. The Dutch East India Company (VOC) only managed to establish official relations with Tonkin in the spring of 1637 after leaving Dejima in Japan to establish trade for silk . Meanwhile, in 1613, the first English attempt to establish contact with Hội An failed following a violent incident involving the East India Company . By 1672

1378-577: A provisional government, which asserted national independence on 2 September. In July 1945, the Allies had decided to divide Indochina at the 16th parallel to allow Chiang Kai-shek of the Republic of China to receive the Japanese surrender in the north while Britain's Lord Louis Mountbatten received their surrender in the south. The Allies agreed that Indochina still belonged to France. But as

1484-575: A rise in income inequality and gender disparities. In 2021, General Secretary of the Communist Party, Nguyen Phu Trong , was re-elected for his third term in office, meaning he is Vietnam's most powerful leader in decades. Vietnam is located on the eastern Indochinese Peninsula between the latitudes 8° and 24°N , and the longitudes 102° and 110°E . It covers a total area of 331,210 km (127,881 sq mi) or 331,699 km (128,070 sq mi). The combined length of

1590-525: A whole, the lithology of the Thong-Man Cau Formation is made from sandstones and claystones with carbonate build up and platform . This formation has a thickness between 100m to 500m.The upper formation consist of Clay, calcareous clay and grey sandstones. The lower formation has whitish grey carbonate and quartz sandstones. The Nam Con Son Formation has a generally lithology of yellow claystone which are interbedded with siltstone. It

1696-570: Is 1,090 MW. Natural gas for the plant is supplied by Vietsovpetro . Construction of Phú Mỹ 1 started in September 1998 and the plant was commissioned in May 2000. It was built by Mitsubishi Heavy Industries and cost US$ 530 million. 85% of costs was financed by Japan through Overseas Economic Co-operation Fund and 15% was financed by the Vietnamese government. Phú Mỹ 2–1 power plant

1802-544: Is a 450 MW combined-cycle power plant with two gas turbines and one steam turbine. It is operated by Vietnam Electricity. It became operational in 2004. The €238 million power plant was built by Alstom and Marubeni . The project management contractor was Jurong Engineering. Nam Con Son Basin The Nam Con Son Basin (also known as the Wanan Basin ) formed as a rift basin during

1908-521: Is a 715 MW combined cycle power plant with two gas-fired turbines and an add-on steam turbine. The plant is operated by Mekong Energy Limited, a consortium of Électricité de France , Sumitomo and the Tokyo Electric Power Company . Natural gas for the plant is supplied by Petrovietnam . Produced electricity is sold to Vietnam Electricity. Phú Mỹ 2–2 is implemented as a 20-year build–operate–transfer project. The tender

2014-421: Is a 900 MW combined cycle power plant with six units. It is operated by Vietnam Electricity. Construction of the plant started in 1995 and it was commissioned in 1997. This time it was equipped with two 144 MW gas turbines and a 160 MW steam turbine. The extension was commissioned at the end of 2002 by Siemens. The World Bank financed extension through an IDA credit The Phú Mỹ 2–2 power plant

2120-506: Is a country at the eastern edge of mainland Southeast Asia , with an area of about 331,000 square kilometres (128,000 sq mi) and a population of over 100 million, making it the world's fifteenth-most populous country . One of the two Marxist–Leninist states in Southeast Asia, Vietnam shares land borders with China to the north, and Laos and Cambodia to the west. It shares maritime borders with Thailand through

2226-496: Is a low-level plain no more than 3 metres (9.8 ft) above sea level at any point. It is criss-crossed by a maze of rivers and canals, which carry so much sediment that the delta advances 60 to 80 metres (196.9 to 262.5 ft) into the sea every year. The exclusive economic zone of Vietnam covers 417,663 km (161,261 sq mi) in the South China Sea . Southern Vietnam is divided into coastal lowlands,

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2332-497: Is average cemented and have rich organic and fossil properties. The Bien Dong Formation thickness varies from a few meters to 200m. In the Quaternary layer, moving from the bottom to the middle to the top, the Bien Dong Formation is composed of angular to round quartz sand which gradually changes to silty clay in the middle section to quartz sand imbedded with shell fragments at the top of the layer. The Lower Pliocene layer has

2438-593: Is composed of lacustrine shale , alluvial sandstones and minor coals . Overlying unconformably in the Cau Formation, the Dua Formation is between 200m to 800m thick, composed of light and bright grey sandstone, interbedded with blackish-grey silty clay. The sandstone has characteristics of fine to medium grained, angular, quarts, with carbonate cement. This formation also has glauconite corresponding with fossil fragments. The overall lithology of

2544-518: Is one of the most vulnerable countries to climate change, with 55% of its population living in low-elevation coastal areas. As the country is located within the Indomalayan realm , Vietnam is one of twenty-five countries considered to possess a uniquely high level of biodiversity . This was noted in the country's National Environmental Condition Report in 2005. It is ranked 16th worldwide in biological diversity, being home to approximately 16% of

2650-465: Is the legacy of the use of the chemical herbicide Agent Orange , which continues to cause birth defects and many health problems in the Vietnamese population. In the southern and central areas affected most by the chemical's use during the Vietnam War, nearly 4.8 million Vietnamese people have been exposed to it and suffered from its effects. In 2012, approximately 50 years after the war,

2756-524: Is used to fuel the Phú Mỹ Power Plants which provides 40% of Vietnam's total electricity. Đại Hùng oilfield was discovered in 1988 with an estimated reserves of 354.6 million barrels of oil and 8.482 trillion cubic meters of natural gas. Dai Hung field was one of the first three fields in Vietnam to come on-stream in October 1994 under operator Vietsovpetro . The average production from this field

2862-545: The Demilitarised Zone , roughly along the 17th parallel north (pending elections scheduled for July 1956 ). A 300-day period of free movement was permitted, during which almost a million northerners, mainly Catholics, moved south, fearing persecution by the communists. This migration was in large part aided by the United States military through Operation Passage to Freedom . The partition of Vietnam by

2968-765: The First Indochina War , from which Vietnam emerged victorious in 1954. As a result of the treaties signed between the Viet Minh and France, Vietnam was also separated into two parts. The Vietnam War began shortly after, between the communist North Vietnam , supported by the Soviet Union and China , and the anti-communist South Vietnam , supported by the United States . Upon the North Vietnamese victory in 1975, Vietnam reunified as

3074-710: The Gulf of Thailand , and the Philippines , Indonesia , and Malaysia through the South China Sea . Its capital is Hanoi and its largest city is Ho Chi Minh City (commonly known as Saigon). Vietnam was inhabited by the Paleolithic age, with states established in the first millennium BC on the Red River Delta in modern-day northern Vietnam . The Han dynasty annexed Northern and Central Vietnam, which were subsequently under Chinese rule from 111 BC until

3180-604: The Khmer Rouge government of Cambodia ordering massacres of Vietnamese residents in the border villages in the districts of An Giang and Kiên Giang , the Vietnamese military invaded Cambodia and removed them from power after occupying Phnom Penh . The intervention was a success, resulting in the establishment of a new, pro-Vietnam socialist government, the People's Republic of Kampuchea , which ruled until 1989. However, this worsened relations with China, which had supported

3286-576: The Khúc family . In AD 938, the Vietnamese lord Ngô Quyền defeated the forces of the Chinese Southern Han state at Bạch Đằng River and achieved full independence for Vietnam in 939 after a millennium of Chinese domination. By the 960s, the dynastic Đại Việt ( Great Viet ) kingdom was established, Vietnamese society enjoyed a golden era under the Lý and Trần dynasties. During the rule of

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3392-761: The Late Pleistocene have been found at Dong Can, and from the Early Holocene at Mai Da Dieu, Lang Gao and Lang Cuom. Areas comprising what is now Vietnam participated in the Maritime Jade Road , as ascertained by archeological research. By about 1,000 BC, the development of wet- rice cultivation in the Ma River and Red River floodplains led to the flourishing of Đông Sơn culture , notable for its bronze casting used to make elaborate bronze Đông Sơn drums . At this point,

3498-722: The Nguyễn dynasty , ruling under the name Gia Long . In the 1500s, the Portuguese explored the Vietnamese coast and reportedly erected a stele on the Chàm Islands to mark their presence. By 1533, they began landing in the Vietnamese delta but were forced to leave because of local turmoil and fighting. They also had less interest in the territory than they did in China and Japan. After they had settled in Macau and Nagasaki to begin

3604-634: The Nguyễn dynasty . In the second year of his rule, he asked the Jiaqing Emperor of the Qing dynasty to confer on him the title 'King of Nam Việt / Nanyue' ( 南越 in Chinese character) after seizing power in Annam. The Emperor refused because the name was related to Zhao Tuo 's Nanyue, which included the regions of Guangxi and Guangdong in southern China. The Qing Emperor, therefore, decided to call

3710-652: The Oligocene period. This basin is the southernmost sedimentary basin offshore of Vietnam , located within coordinates of 6°6'-9°45'N and 106°0-109°30'E in the East Vietnam Sea . It is the largest oil and gas bearing basin in Vietnam and has a number of producing fields. The Nam Con Son Basin, located adjacent to the Cuu Long Basin , is approximately 90,000 km . The Basin age ranges from Oligocene to Quaternary in age with sediment thickness of

3816-580: The Republic of Vietnam in the south—supported by the United States, France, Laos , Republic of China and Thailand—and Hồ's Democratic Republic of Vietnam in the north, supported by the Soviet Union, Sweden, Khmer Rouge , and the People's Republic of China . From 1953 to 1956, the North Vietnamese government instituted agrarian reforms including " rent reduction " and " land reform ", which resulted in significant political repression . This included 13,500 to as many as 100,000 executions. In

3922-842: The United Nations Security Council twice. The name Việt Nam ( pronounced [viə̂tˀ nāːm] , chữ Hán : 越南 ), literally "Viet South", means "Viet of the South" per Vietnamese word order or "South of the Viet" per Classical Chinese word order. A variation of the name, Nanyue (or Nam Việt, 南越 ), was first documented in the 2nd century BC. The term " Việt " (Yue) ( Chinese : 越 ; pinyin : Yuè ; Cantonese Yale : Yuht ; Wade–Giles : Yüeh ; Vietnamese : Việt ) in Early Middle Chinese

4028-479: The Vietnamese Fatherland Front and worker and trade unionist parties. The National Assembly of Vietnam is the unicameral state legislature composed of 500 members. Headed by a chairman , it is superior to both the executive and judicial branches, with all government ministers being appointed from members of the National Assembly. The Supreme People's Court of Vietnam , headed by

4134-465: The collapse of Diệm's relationship with the United States , and ultimately to a 1963 coup in which he and Nhu were assassinated . The Diệm era was followed by more than a dozen successive military governments, before the pairing of Air Marshal Nguyễn Cao Kỳ and General Nguyễn Văn Thiệu took control in mid-1965. Thiệu gradually outmaneuvered Kỳ and cemented his grip on power in fraudulent elections in 1967 and 1971. During this political instability,

4240-515: The constitution , the Communist Party of Vietnam (CPV) asserts their role in all branches of the country's politics and society. The president is the elected head of state and the commander-in-chief of the military, serving as the chairman of the Council of Supreme Defence and Security, and holds the second highest office in Vietnam as well as performing executive functions and state appointments and setting policy. The general secretary of

4346-490: The first dynasty emerged in 939. Successive monarchical dynasties absorbed Chinese influences through Confucianism and Buddhism , and expanded southward to the Mekong Delta , conquering Champa . During most of the 17th and 18th centuries, Vietnam was effectively divided into two domains of Đàng Trong and Đàng Ngoài . The Nguyễn —the last imperial dynasty—surrendered to France in 1883. In 1887, its territory

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4452-673: The global economy and politics . Vietnam is a developing country with a lower-middle-income economy. It has high levels of corruption , censorship , environmental issues and a poor human rights record . It is part of international and intergovernmental institutions including the ASEAN , the APEC , the CPTPP , the Non-Aligned Movement , the OIF , and the WTO . It has assumed a seat on

4558-816: The ground water in the Mekong and Red River Deltas has also become a major concern. And most notoriously, unexploded ordnances (UXO) pose dangers to humans and wildlife—another bitter legacy from the long wars. As part of the continuous campaign to demine /remove UXOs, several international bomb removal agencies from the United Kingdom, Denmark, South Korea and the US have been providing assistance. The Vietnam government spends over VNĐ1 trillion ($ 44 million) annually on demining operations and additional hundreds of billions of đồng for treatment, assistance, rehabilitation, vocational training and resettlement of

4664-658: The saola , giant muntjac and Tonkin snub-nosed monkey have also been discovered, along with one new bird species, the endangered Edwards's pheasant . In the late 1980s, a small population of Javan rhinoceros was found in Cát Tiên National Park. However, the last individual of the species in Vietnam was reportedly shot in 2010. In agricultural genetic diversity , Vietnam is one of the world's twelve original cultivar centres. The Vietnam National Cultivar Gene Bank preserves 12,300 cultivars of 115 species. The Vietnamese government spent US$ 49.07 million on

4770-545: The siege of Tourane in 1858, France was aided by Spain (with Filipino, Latin American , and Spanish troops from the Philippines ) and perhaps some Tonkinese Catholics. After the 1862 Treaty , and especially after France completely conquered Lower Cochinchina in 1867, the Văn Thân movement of scholar-gentry class arose and committed violence against Catholics across central and northern Vietnam. Between 1862 and 1867,

4876-701: The 1930 Yên Bái mutiny by the Vietnamese Nationalist Party (VNQDĐ), which the French quashed. The mutiny split the independence movement, as many leading members converted to communism . The French maintained full control of their colonies until World War II, when the war in the Pacific led to the Japanese invasion of French Indochina in 1940. Afterwards, the Japanese Empire was allowed to station its troops in Vietnam while

4982-474: The 1954 battle of Điện Biên Phủ allowed Hồ to negotiate a ceasefire from a favourable position at the subsequent Geneva Conference . The colonial administration was thereby ended and French Indochina was dissolved under the Geneva Accords of 21 July 1954 into three countries—Vietnam, and the kingdoms of Cambodia and Laos . Vietnam was further divided into North and South administrative regions at

5088-703: The 7th and 4th centuries BC, 'Yue'/'Việt' referred to the State of Yue in the lower Yangtze basin and its people. From the 3rd century BC, the term was used for the non-Chinese populations of southern China and northern Vietnam, with particular ethnic groups called Minyue , Ouyue , Luoyue (Vietnamese: Lạc Việt ), etc., collectively called the Baiyue (Bách Việt, Chinese : 百越 ; pinyin : Bǎiyuè ; Cantonese Yale : Baak Yuet ; Vietnamese : Bách Việt ; lit. 'Hundred Yue/Viet'). The term 'Baiyue'/'Bách Việt' first appeared in

5194-442: The Bien Dong Formation. The middle sequence have a composition of Miocene sediments of the Dua Formation, Thong-Man Cau Formations and the Nam Con Son Formation. The lower sequence which is composed from Paleogene sediments from the Cau Formation. This formation varies between 200m to 800m with the top formation composed of dark grey, greenish grey clay, intercalated with beds of sandstone , and siltstone . The middle layer of

5300-408: The CPV performs numerous key administrative functions, controlling the party's national organisation. The prime minister is the head of government , presiding over a council of ministers composed of five deputy prime ministers and the heads of 26 ministries and commissions. Only political organisations affiliated with or endorsed by the CPV are permitted to contest elections in Vietnam. These include

5406-405: The Chinese coast and across the Gulf of Tonkin, picking up considerable moisture. The average annual temperature is generally higher in the plains than in the mountains, especially in southern Vietnam compared to the north. Temperatures vary less in the southern plains around Ho Chi Minh City and the Mekong Delta, ranging from between 21 and 35 °C (70 and 95 °F) over the year. In Hanoi and

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5512-446: The Chinese-supported Mạc dynasty challenged the Lê dynasty's power. After the Mạc dynasty was defeated, the Lê dynasty was nominally reinstalled. Actual power, however, was divided between the northern Trịnh lords and the southern Nguyễn lords , who engaged in a civil war for more than four decades before a truce was called in the 1670s. Vietnam was divided into North (Trịnh) and South (Nguyễn) from 1600 to 1777. During this period,

5618-617: The Dua Formation in the Nam Con Son Basin consist of coastal plain sandstones and has claystones and interbedded minor coals. Varying from 10m to 100m in the Thong-Man Cau formation, the upper formation has a composition of light grey, whitish/grey, locally reddish brown dolomitized carbonates and it is also intercalated with clays friable siltstones and fine grained, calcite-cemented sandstones. The lower formation consists of sandstone and calcareous sandstones interbedded with clays and siltstones. It has fine to medium grained sandstones with carbonate cement, glauconite and fossil fragments. As

5724-459: The English did establish relations with Tonkin and were allowed to reside in Phố Hiến . Between 1615 and 1753, French traders also engaged in trade in Vietnam. The first French missionaries arrived in 1658, under the Portuguese Padroado . From its foundation, the Paris Foreign Missions Society under Propaganda Fide actively sent missionaries to Vietnam, entering Cochinchina first in 1664 and Tonkin first in 1666. Spanish Dominicans joined

5830-443: The French were weakened by the German occupation , British-Indian forces and the remaining Japanese Southern Expeditionary Army Group were used to maintain order and help France reestablish control through the 1945–1946 War in Vietnam . Hồ initially chose to take a moderate stance to avoid military conflict with France, asking the French to withdraw their colonial administrators and for French professors and engineers to help build

5936-429: The Geneva Accords was not intended to be permanent, and stipulated that Vietnam would be reunited after the elections. But in 1955, the southern State of Vietnam's prime minister, Ngô Đình Diệm , toppled Bảo Đại in a fraudulent referendum organised by his brother Ngô Đình Nhu , and proclaimed himself president of the Republic of Vietnam . This effectively replaced the internationally recognised State of Vietnam by

6042-466: The Khmer Rouge. China later launched a brief incursion into northern Vietnam in 1979, causing Vietnam to rely even more heavily on Soviet economic and military aid, while mistrust of the Chinese government escalated. At the Sixth National Congress of the Communist Party of Vietnam (CPV) in December 1986, reformist politicians replaced the "old guard" government with new leadership. The reformers were led by 71-year-old Nguyễn Văn Linh , who became

6148-450: The Lê dynasty of the 15th century, especially during the reign of emperor Lê Thánh Tông (1460–1497). Between the 11th and 18th centuries, the Vietnamese polity expanded southward in a gradual process known as Nam tiến ("Southward expansion"), eventually conquering the kingdom of Champa and part of the Khmer Kingdom . From the 16th century onward, civil strife and frequent political infighting engulfed much of Đại Việt. First,

6254-459: The Nguyễn expanded southern Vietnam into the Mekong Delta , annexing the Central Highlands and the Khmer lands in the Mekong Delta. The division of the country ended a century later when the Tây Sơn brothers helped Trịnh to end Nguyễn, they also established new dynasty and ended Trịnh. However, their rule did not last long, and they were defeated by the remnants of the Nguyễn lords, led by Nguyễn Ánh . Nguyễn Ánh unified Vietnam, and established

6360-420: The Red River Delta, Mekong Delta, Western Nghệ An , Cà Mau , and Cu Lao Cham Marine Park . Vietnam is also home to 1,438 species of freshwater microalgae , constituting 9.6% of all microalgae species, as well as 794 aquatic invertebrates and 2,458 species of sea fish. In recent years, 13 genera , 222 species, and 30 taxa of flora have been newly described in Vietnam. Six new mammal species, including

6466-434: The South, Diệm countered North Vietnamese subversion (including the assassination of over 450 South Vietnamese officials in 1956) by detaining tens of thousands of suspected communists in "political reeducation centres". This program incarcerated many non-communists, but was successful at curtailing communist activity in the country, if only for a time. The North Vietnamese government claimed that 2,148 people were killed in

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6572-411: The Soviet Union provided North Vietnam with significant material aid and 15,000 combat advisers. Communist forces supplying the Việt Cộng carried supplies along the Hồ Chí Minh trail , which passed through Laos . The communists attacked South Vietnamese targets during the 1968 Tết Offensive . The campaign failed militarily, but shocked the American establishment and turned US public opinion against

6678-419: The Tonkin mission in 1676, and Franciscans were in Cochinchina from 1719 to 1834. The Vietnamese authorities began to feel threatened by continuous Christianisation activities. After several Catholic missionaries were detained, the French Navy intervened in 1843 to free them, as the kingdom was perceived as xenophobic . In a series of conquests from 1859 to 1885, France eroded Vietnam's sovereignty. At

6784-415: The Trần dynasty, Đại Việt repelled three Mongol invasions . Meanwhile, the Mahāyāna branch of Buddhism flourished and became the state religion. Following the 1406–7 Ming–Hồ War , which overthrew the Hồ dynasty , Vietnamese independence was interrupted briefly by the Chinese Ming dynasty , but was restored by Lê Lợi , the founder of the Lê dynasty . The Vietnamese polity reached their zenith in

6890-434: The US began a US$ 43 million joint clean-up project in the former chemical storage areas in Vietnam to take place in stages. Following the completion of the first phase in Đà Nẵng in late 2017, the US announced its commitment to clean other sites, especially in the heavily impacted site of Biên Hòa . The Vietnamese government spends over VNĐ 10 trillion each year ($ 431.1 million) for monthly allowances and

6996-417: The US or the defunct South Vietnamese government, confounding Western fears, but up to 300,000 South Vietnamese were sent to reeducation camps , where many endured torture, starvation, and disease while being forced to perform hard labour. The government embarked on a mass campaign of collectivisation of farms and factories. Many fled the country following the conclusion of the war. In 1978, in response to

7102-413: The Vietnamese revolutionary leader Hồ Chí Minh . The Việt Minh sought independence for Vietnam from France and the end of the Japanese occupation . After the military defeat of Japan in World War II and the fall of its puppet government Empire of Vietnam in August 1945, Saigon's administrative services collapsed and chaos, riots, and murder were widespread. The Việt Minh occupied Hanoi and proclaimed

7208-427: The area "Việt Nam" instead, meaning "South of the Viet" per Classical Chinese word order but the Vietnamese understood it as "Viet of the South" per Vietnamese word order. Between 1804 and 1813, the name Vietnam was used officially by Emperor Gia Long. It was revived in the early 20th century in Phan Bội Châu 's History of the Loss of Vietnam , and later by the Vietnamese Nationalist Party (VNQDĐ). The country

7314-400: The basin is composed of quartz sandstone intercalated with greyish black, firm claystone and a thick bed of dark grey clay intercalated with light coloured oil shale . The later of this basin is also locally fine grained and calcareous. The bottom layer has a composition of brownish grey sandstones intercalated with several beds of silty clay. Overall, the lithology of the Cau Formation

7420-540: The book Lüshi Chunqiu compiled around 239 BC. By the 17th and 18th centuries AD, educated Vietnamese apparently referred to themselves as người Việt (Viet people) or người Nam (southern people). The form Việt Nam ( 越南 ) is first recorded in the 16th-century oracular poem Sấm Trạng Trình . The name has also been found on 12 steles carved in the 16th and 17th centuries, including one at Bao Lam Pagoda in Hải Phòng that dates to 1558. In 1802, Nguyễn Phúc Ánh (who later became Emperor Gia Long) established

7526-429: The colony's capital. During the colonial period, guerrillas of the royalist Cần Vương movement rebelled against French rule and massacred around a third of Vietnam's Christian population. After a decade of resistance, they were defeated in the 1890s by the Catholics in reprisal for their earlier massacres. Another large-scale rebellion, the Thái Nguyên uprising , was also suppressed heavily. The French developed

7632-436: The communists began to gain ground. To support South Vietnam's struggle against the communist insurgency, the United States used the 1964 Gulf of Tonkin incident as a pretext for increasing its contribution of military advisers. US forces became involved in ground combat operations by 1965, and at their peak several years later, numbered more than 500,000. The US also engaged in sustained aerial bombing . Meanwhile, China and

7738-519: The country consists mostly of highlands and the Red River Delta. Fansipan (also known as Phan Xi Păng), which is located in Lào Cai province , is the highest mountain in Vietnam, standing 3,143 m (10,312 ft) high. From north to south Vietnam, the country also has numerous islands ; Phú Quốc is the largest. The Hang Sơn Đoòng Cave is considered the largest known cave passage in

7844-546: The country's land area, and tropical forests cover around 42%. The Red River Delta in the north, a flat, roughly triangular region covering 15,000 km (5,792 sq mi), is smaller but more intensely developed and more densely populated than the Mekong River Delta in the south. Once an inlet of the Gulf of Tonkin , it has been filled in over the millennia by riverine alluvial deposits . The delta, covering about 40,000 km (15,444 sq mi),

7950-441: The country's land boundaries is 4,639 km (2,883 mi), and its coastline is 3,444 km (2,140 mi) long. At its narrowest point in the central Quảng Bình province , the country is as little as 50 kilometres (31 mi) across, though it widens to around 600 kilometres (370 mi) in the north. Vietnam's land is mostly hilly and densely forested, with level land covering no more than 20%. Mountains account for 40% of

8056-484: The early Vietnamese kingdoms of Văn Lang and Âu Lạc appeared, and the culture's influence spread to other parts of Southeast Asia , including Maritime Southeast Asia , throughout the first millennium BC. According to Vietnamese legends, Hồng Bàng dynasty of the Hùng kings first established in 2879 BC is considered the first state in the history of Vietnam (then known as Xích Quỷ and later Văn Lang ). In 257 BC,

8162-522: The end of the war. It started by replanting mangrove forests in the Mekong Delta regions and in Cần Giờ outside Hồ Chí Minh City, where mangroves are important to ease (though not eliminate) flood conditions during monsoon seasons. The country had a 2019 Forest Landscape Integrity Index mean score of 5.35/10, ranking it 104th globally out of 172 countries. Apart from herbicide problems, arsenic in

8268-402: The far northern mountains near the Chinese border. Vietnam receives high rates of precipitation in the form of rainfall with an average amount from 1,500 to 2,000 mm (60 to 80 in) during the monsoon seasons; this often causes flooding, especially in the cities with poor drainage systems. The country is also affected by tropical depressions , tropical storms and typhoons . Vietnam

8374-553: The hanging walls of the main faults during the Mid-Miocene period. However, as the Nam Con Son Basin has a complex tectonic setting, the probability of success for commercial discovery is only at 16%. The Nam Con Son Basin, along with the Malay-Tho Chu Basins, are the two major gas supply caters towards Vietnam's energy demand. One such example is that natural gas from the Nam Con Son Basin and Bạch Hổ oil field

8480-578: The last Hùng king was defeated by Thục Phán. He consolidated the Lạc Việt and Âu Việt tribes to form the Âu Lạc , proclaiming himself An Dương Vương . In 179 BC, a Chinese general named Zhao Tuo ("Triệu Đà") defeated An Dương Vương and consolidated Âu Lạc into Nanyue . However, Nanyue was itself incorporated into the empire of the Chinese Han dynasty in 111 BC after the Han–Nanyue War . For

8586-469: The mountains of the Annamite Range , and extensive forests. Comprising five relatively flat plateaus of basalt soil, the highlands account for 16% of the country's arable land and 22% of its total forested land. The soil in much of the southern part of Vietnam is relatively low in nutrients as a result of intense cultivation. Several minor earthquakes have been recorded. The northern part of

8692-542: The next thousand years, what is now northern Vietnam remained mostly under Chinese rule . Early independence movements, such as those of the Trưng Sisters and Lady Triệu , were temporarily successful, though the region gained a longer period of independence as Vạn Xuân under the Anterior Lý dynasty between AD 544 and 602. By the early 10th century, Northern Vietnam had gained autonomy, but not sovereignty, under

8798-682: The party's new general secretary. He and the reformers implemented a series of free-market reforms known as Đổi Mới ("Renovation") that carefully managed the transition from a planned economy to a " socialist-oriented market economy ". Although the authority of the state remained unchallenged under Đổi Mới , the government encouraged private ownership of farms and factories, economic deregulation, and foreign investment, while maintaining control over strategic industries. Subsequently, Vietnam's economy achieved strong growth in agricultural and industrial production, construction, exports, and foreign investment, although these reforms also resulted in

8904-453: The physical rehabilitation of victims of the chemicals. In 2018, the Japanese engineering group Shimizu Corporation , working with Vietnamese military, built a plant for the treatment of soil polluted by Agent Orange. Plant construction costs were funded by the company itself. One of the long-term plans to restore southern Vietnam's damaged ecosystems is through the use of reforestation efforts. The Vietnamese government began doing this at

9010-428: The preservation of biodiversity in 2004 alone and has established 126 conservation areas, including 30 national parks . In Vietnam, wildlife poaching has become a major concern. In 2000, a non-governmental organisation (NGO) called Education for Nature – Vietnam was founded to instill in the population the importance of wildlife conservation in the country. In the years that followed, another NGO called GreenViet

9116-571: The pro- Vichy French colonial administration continued. Japan exploited Vietnam's natural resources to support its military campaigns, culminating in a full-scale takeover of the country in March 1945. This led to the Vietnamese Famine of 1945 which killed up to two million people. In 1941, the Việt Minh , a nationalist liberation movement based on a communist ideology , emerged under

9222-478: The process by November 1957. The pro-Hanoi Việt Cộng began a guerrilla campaign in South Vietnam in the late 1950s to overthrow Diệm's government. From 1960, the Soviet Union and North Vietnam signed treaties providing for further Soviet military support. In 1963, Buddhist discontent with Diệm's Catholic regime erupted into mass demonstrations , leading to a violent government crackdown. This led to

9328-515: The profitable Macau–Japan trade route, the Portuguese began to involve themselves in trade with Hội An . Portuguese traders and Jesuit missionaries under the Padroado system were active in both Vietnamese realms of Đàng Trong ( Cochinchina or Quinan) and Đàng Ngoài ( Tonkin ) in the 17th century. The Dutch also tried to establish contact with Quinan in 1601 but failed to sustain

9434-785: The province of Phước Long and started a full-scale offensive , culminating in the fall of Saigon on 30 April 1975. South Vietnam was ruled by a provisional government for almost eight years while under North Vietnamese military occupation. On 2 July 1976, North and South Vietnam were merged to form the Socialist Republic of Vietnam. The war had devastated Vietnam and killed 966,000 to 3.8 million people. A 1974 US Senate subcommittee estimated nearly 1.4 million Vietnamese civilians were killed or wounded between 1965 and 1974—including 415,000 killed. In its aftermath, under Lê Duẩn 's administration, there were no mass executions of South Vietnamese who had collaborated with

9540-567: The rift tip by the NW-SE regional extension. NW-SE expansion together with a change in spreading direction in the South China Sea intensified topographic relief while restricting carbonate systems to platform or footwall locations and the facies pattern. Grabens were further deposited upon deeper shelf and slope facies. Nam Con Son Basin was once again reactivated tectonically by a mild inversion followed by thermal subsidence which caused

9646-646: The same year due to corruption charges against him. On 3 August 2024, Tô Lâm, who is also serving as the president, was elected by the Central Committee of the Communist Party of Vietnam as the general secretary following the death of Nguyễn Phú Trọng on 19 July 2024. On 21 October 2024, the National Assembly appointed army general Lương Cường as president, succeeding Tô Lâm. Vietnam is divided into 58 provinces (Vietnamese: Tỉnh , chữ Hán : 省 ). There are also five municipalities ( thành phố trực thuộc trung ương ), which are administratively on

9752-890: The southern third of the country became the French colony of Cochinchina . By 1884, the entire country was under French rule, with the central and northern parts of Vietnam separated into the two protectorates of Annam and Tonkin . The three entities were formally integrated into the union of French Indochina in 1887. The French administration imposed significant political and cultural changes on Vietnamese society. A Western-style system of modern education introduced new humanist values. Most French settlers in Indochina were concentrated in Cochinchina, particularly in Saigon , and in Hanoi ,

9858-522: The surrounding areas of the Red River Delta, the temperatures are much lower between 15 and 33 °C (59 and 91 °F). Seasonal variations in the mountains, plateaus, and the northernmost areas are much more dramatic, with temperatures varying from 3 °C (37 °F) in December and January to 37 °C (99 °F) in July and August. During winter, snow occasionally falls over the highest peaks of

9964-488: The victims of UXOs. Vietnam is a unitary Marxist-Leninist one-party socialist republic , one of the two communist states (the other being Laos ) in Southeast Asia . Although Vietnam remains officially committed to socialism as its defining creed, its economic policies have grown increasingly capitalist , with The Economist characterising its leadership as "ardently capitalist communists". Under

10070-600: The war. During the offensive, communist troops massacred over 3,000 civilians at Huế . Facing an increasing casualty count, rising domestic opposition to the war, and growing international condemnation, the US began withdrawing from ground combat roles in the early 1970s. This also entailed an unsuccessful effort to strengthen and stabilise South Vietnam . Following the Paris Peace Accords of 27 January 1973, all American combat troops were withdrawn by 29 March 1973. In December 1974, North Vietnam captured

10176-413: The west and thermal subsidence. The rifting phase was follow by a spreading in the seafloor with the axis shifting from WSW to SW trend. Transgressions and backstopping of deltas resulted in sag sequences trending upwards from non-marine to marine features during early Miocene. Continental breakup occurred shortly after seafloor spreading in the Nam Con Son Basin resulted in a second SW extension phase at

10282-411: The world since its discovery in 2009. The Ba Bể Lake and Mekong River are the largest lake and longest river in the country. Due to differences in latitude and the marked variety in topographical relief , Vietnam's climate tends to vary considerably for each region. During the winter or dry season, extending roughly from November to April, the monsoon winds usually blow from the northeast along

10388-640: The world's species. 15,986 species of flora have been identified in the country, of which 10% are endemic . Vietnam's fauna includes 307 nematode species, 200 oligochaeta , 145 acarina , 113 springtails , 7,750 insects, 260 reptiles, and 120 amphibians. There are 840 birds and 310 mammals are found in Vietnam, of which 100 birds and 78 mammals are endemic. Vietnam has two World Natural Heritage Sites —the Hạ Long Bay and Phong Nha-Kẻ Bàng National Park —together with nine biosphere reserves , including Cần Giờ Mangrove Forest , Cát Tiên , Cát Bà , Kiên Giang ,

10494-461: Was about 3000 barrels of oil per day and is predicted for abandonment in 2025. The source rock were developed in the Oligocene and Miocene and are widely distributed throughout the basin with a dominance of parabolic coal mud rocks. Reservoir rock are typically by quartz sandstones, limestone and poly-mineral sandstones with reservoir thickness between 2m and 80m. Cap rocks in the Nam Con Son Basin consist of thin siltstone and sandstone with

10600-514: Was first written using the logograph "戉" for an axe (a homophone), in oracle bone and bronze inscriptions of the late Shang dynasty ( c.  1200 BC), and later as "越". At that time, it referred to a people or chieftain to the northwest of the Shang. In the early 8th century BC, a tribe on the middle Yangtze were called the Yangyue , a term later used for peoples further south. Between

10706-517: Was formed by Vietnamese youngsters for the enforcement of wildlife protection. Through collaboration between the NGOs and local authorities, many local poaching syndicates were crippled by their leaders' arrests. A study released in 2018 revealed Vietnam is a destination for the illegal export of rhinoceros horns from South Africa due to the demand for them as a medicine and a status symbol. The main environmental concern that persists in Vietnam today

10812-555: Was integrated into French Indochina as three separate regions. In the immediate aftermath of World War II , the nationalist coalition Viet Minh , led by the communist revolutionary Ho Chi Minh , launched the August Revolution and declared Vietnam's independence from the Empire of Japan in 1945. Vietnam went through prolonged warfare in the 20th century. After World War II , France returned to reclaim colonial power in

10918-563: Was launched in October 1997 and the agreements were signed in September 2001. First electricity was produced in February 2005 and the plant was fully commissioned in October 2005. It cost $ 400 million. The World Bank provided a partial credit guarantee through IDA. The Phú Mỹ 3 is power plant is a 715 MW combined-cycle power plant with two 250 MW gas turbines and one 250 MW steam turbine. Generators were supplied and installed by Siemens . The build–operate–transfer licence

11024-556: Was provided to BP Amoco in May 2001. The plant was fully commissioned in March 2004. The plant was operated by BP Global Power and currently is operated by Sembcorp . The plant cost $ 412 million, consisting of a $ 309 million syndicated loan and $ 103 million of equity. The Asian Development Bank provided a $ 40 million loan and $ 32 million of political risk guarantees, Multilateral Investment Guarantee Agency provided $ 138 million of political risk guarantees, Japan Bank for International Cooperation provided

11130-466: Was responsible for governing Vietnam. President Võ Văn Thưởng , Prime Minister Phạm Minh Chính (since 2021) and the most powerful leader Nguyễn Phú Trọng (since 2011) as the Communist Party of Vietnam's General Secretary. On 22 May 2024, Tô Lâm , who previously served as the Minister of Public Security , was voted as the president of Vietnam by the National Assembly after Võ Văn Thưởng resigned on

11236-989: Was usually called Annam until 1945, when the imperial government in Huế adopted Việt Nam . Archaeological excavations have revealed the existence of humans in what is now Vietnam as early as the Paleolithic age. Stone artefacts excavated in Gia Lai province have been claimed to date to 780,000 years ago, based on associated find of tektites , however this claim has been challenged because tektites are often found in archaeological sites of various ages in Vietnam. Homo erectus fossils dating to around 500,000 BC have been found in caves in Lạng Sơn and Nghệ An provinces in northern Vietnam. The oldest Homo sapiens fossils from mainland Southeast Asia are of Middle Pleistocene provenance, and include isolated tooth fragments from Tham Om and Hang Hum. Teeth attributed to Homo sapiens from

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