Cambodia, officially the Kingdom of Cambodia, is a country located in the southern portion of the Indochina peninsula in Southeast Asia. It is 181,035 square kilometres (69,898 square miles) in area, bordered by Thailand to the northwest, Laos to the northeast, Vietnam to the east and the Gulf of Thailand to the southwest.
The sovereign state of Cambodia has a population of over 15 million. The official religion is Theravada Buddhism, practised by approximately 95 percent of the population. Cambodia's minority groups include Vietnamese, Chinese, Chams and 30 hill tribes. The capital and largest city is Phnom Penh, the political, economic and cultural centre of Cambodia. The kingdom is an elective constitutional monarchy with a monarch, currently Norodom Sihamoni, chosen by the Royal Throne Council as head of state. The head of government is the Prime Minister, currently Hun Sen, the longest serving non-royal leader in Southeast Asia, ruling Cambodia since 1985.
In 802 AD, Jayavarman II declared himself king, uniting the warring Khmer princes of Chenla under the name "Kambuja". This marked the beginning of the Khmer Empire, which flourished for over 600 years, allowing successive kings to control and exert influence over much of Southeast Asia and accumulate immense power and wealth. The Indianised kingdom facilitated the spread of first Hinduism and then Buddhism to much of Southeast Asia and undertook many religious infrastructural projects throughout the region, including the construction of more than 1,000 temples and monuments in Angkoralone. Angkor Wat is the most famous of these structures and is designated as a World Heritage Site.
Neak Loeung Bridge
After the fall of Angkor to Ayutthaya in the 15th century, a reduced and weakened Cambodia was then ruled as a vassal state by its neighbours. In 1863, Cambodia became a protectorate of France, which doubled the size of the country by reclaiming the north and west from Thailand.
Cambodia gained independence in 1953. The Vietnam War extended into the country with the US bombing of Cambodia from 1969 until 1973. Following the Cambodian coup of 1970 which installed the right-wing pro-US Khmer Republic, the deposed king gave his support to his former enemies, the Khmer Rouge. The Khmer Rouge emerged as a major power, taking Phnom Penh in 1975 and later carrying out the Cambodian genocide from 1975 until 1979, when they were ousted by Vietnam and the Vietnamese-backed People's Republic of Kampuchea, supported by the Soviet Union in the Cambodian–Vietnamese War (1979–91).
Following the 1991 Paris Peace Accords, Cambodia was governed briefly by a United Nations mission (1992–93). The UN withdrew after holding electionsin which around 90 percent of the registered voters cast ballots. The 1997 factional fighting resulted in the ousting of the government by Prime Minister Hun Sen and the Cambodian People's Party, who remain in power as of 2019.
Cambodia is a member of the United Nations since 1955, ASEAN, the East Asia Summit, the WTO, the Non-Aligned Movement and La Francophonie. According to several foreign organisations, the country has widespread poverty, pervasive corruption, lack of political freedoms, low human development and a high rate of hunger. Cambodia has been described by Human Rights Watch's Southeast Asian Director, David Roberts, as a "relatively authoritarian coalition via a superficial democracy".
While per capita income remains low compared to most neighboring countries, Cambodia has one of the fastest growing economies in Asia, with growth averaging 7.6 percent over the last decade. Agriculture remains the dominant economic sector, with strong growth in textiles, construction, garments and tourism leading to increased foreign investment and international trade. The US World Justice Project's 2015 Rule of Law Index ranked Cambodia 76 out of 102 countries, similar to other countries in the region.
| Date | Name | Notes |
| 50/68 AD – 550 AD | Funan Empire | Nokor Phnom – (alternate name) |
| 550–802 | Chenla Empire | Division of Land Chenla and Water Chenla in the 8th century AD. |
| 802–1431 | Khmer Empire | One of the most powerful empires in Southeast Asia. |
| 1431–1863 | Cambodia | Middle Period (Chaktomuk era, Longvek era, Oudong era) |
| 1863–1941, 1945–1953 | Kingdom of Cambodia (French Protectorate) | |
| 1941–1945 | Under Japanese occupation | |
| 1953–1970 | Kingdom of Cambodia | The period of Sangkum Reastr Niyum (People's Socialist Community) |
| 1970–1975 | Khmer Republic | (US bombing, Civil War) |
| 1975–1976 | Kampuchea | (Khmer Genocide) |
| 1976–1982 | Democratic Kampuchea | (Khmer Genocide) – Retained UN recognition[28][29] |
| 1982–1990 | Coalition Government of Democratic Kampuchea | Retained UN recognition |
| 1990–1993 | National Government of Cambodia | Retained UN recognition |
| 1979–1989 | People's Republic of Kampuchea | Not recognized by the UN |
| 1989–1991 | State of Cambodia | |
| 1991–1993 | United Nations Transitional Authority in Cambodia | |
| 1993–present | Kingdom of Cambodia |
Khmer Rouge regime, 1975–1978
Rooms of the Tuol Sleng Genocide Museum contain thousands of photos taken by the Khmer Rouge of their victims.
Choeung Ek, a known site of mass grave for genocide victims during the Khmer Rouge era
The Khmer Rouge reached Phnom Penh and took power in 1975. Led by Pol Pot, they changed the official name of the country to Democratic Kampuchea. The new regime modelled itself on Maoist China during the Great Leap Forward, immediately evacuated the cities, and sent the entire population on forced marches to rural work projects. They attempted to rebuild the country's agriculture on the model of the 11th century, discarded Western medicine and destroyed temples, libraries, and anything considered Western.
Estimates as to how many people were killed by the Khmer Rouge regime range from approximately one to three million; the most commonly cited figure is two million (about a quarter of the population). This era gave rise to the term Killing Fields, and the prison Tuol Sleng became notorious for its history of mass killing. Hundreds of thousands fled across the border into neighbouring Thailand. The regime disproportionately targeted ethnic minority groups. The Cham Muslims suffered serious purges with as much as half of their population exterminated. Pol Pot was determined to keep his power and disenfranchise any enemies or potential threats, and thus increased his violent and aggressive actions against his people.
Forced repatriation in 1970 and deaths during the Khmer Rouge era reduced the Vietnamese population in Cambodia from between 250,000 and 300,000 in 1969 to a reported 56,000 in 1984. However, most of the victims of the Khmer Rouge regime were not ethnic minorities but ethnic Khmer. Professionals, such as doctors, lawyers and teachers, were also targeted. According to Robert D. Kaplan, "eyeglasses were as deadly as the yellow star" as they were seen as a sign of intellectualism.
Religious institutions were not spared by the Khmer Rouge either. Religion was so viciously persecuted to such a terrifying extent that the vast majority of Cambodia's historic architecture, 95% of Cambodia's Buddhist temples, was completely destroyed.
Vietnamese occupation and transition, 1978–1992
In November 1978, Vietnamese troops invaded Cambodia in response to border raids by the Khmer Rouge. The People's Republic of Kampuchea (PRK), a pro-Soviet state led by the Kampuchean People's Revolutionary Party, a party created by the Vietnamese in 1951, and led by a group of Khmer Rouge who had fled Cambodia to avoid being purged by Pol Pot and Ta Mok, was established. It was fully beholden to the occupying Vietnamese army and under direction of the Vietnamese ambassador to Phnom Penh. Its arms came from Vietnam and the Soviet Union.
In opposition to the newly created state, a government-in-exile referred to as the Coalition Government of Democratic Kampuchea (CGDK) was formed in 1981 from three factions. This consisted of the Khmer Rouge, a royalist faction led by Sihanouk, and the Khmer People's National Liberation Front. Its credentials were recognised by the United Nations. The Khmer Rouge representative to the UN, Thiounn Prasith, was retained, but he had to work in consultation with representatives of the noncommunist Cambodian parties. The refusal of Vietnam to withdraw from Cambodia led to economic sanctions by the US and its allies.
Peace efforts began in Paris in 1989 under the State of Cambodia, culminating two years later in October 1991 in a Paris Comprehensive Peace Settlement. The UN was given a mandate to enforce a ceasefire and deal with refugees and disarmament known as the United Nations Transitional Authority in Cambodia (UNTAC).
Restoration of the monarchy

King-Father Norodom Sihanouk's funeral procession in 17 October 2012
In 1993, Norodom Sihanouk was restored as King of Cambodia, but all power was in the hands of the government established after the UNTAC sponsored elections. The stability established following the conflict was shaken in 1997 by a coup d'état led by the co-Prime Minister Hun Sen against the non-communist parties in the government. In recent years, reconstruction efforts have progressed and led to some political stability through a multiparty democracy under a constitutional monarchy.
In July 2010, Kang Kek Iew was the first Khmer Rouge member found guilty of war crimes and crimes against humanity in his role as the former commandant of the S21 extermination camp and he was sentenced to life in prison. However, Hun Sen has opposed extensive trials of former Khmer Rouge mass murderers.
In August 2014, a UN-backed war crimes tribunal, the Extraordinary Chambers in the Courts of Cambodia (also known as the Khmer Rouge Tribunal), sentenced Khieu Samphan, the regime's 83-year-old former head of state, and Nuon Chea, its 88-year-old chief ideologue, to life in prison on war crimes charges for their role in the country's terror period in the 1970s. The trial began in November 2011. Former Foreign Minister Ieng Sary died in 2013, while his wife, Social Affairs Minister Ieng Thirith, was deemed unfit to stand trial due to dementia in 2012. The group's top leader, Pol Pot, died in 1998.
Human rights
Cambodia's deputy opposition leader Kem Sokha (left) has been arrested in September 2017 while opposition leader Sam Rainsy (right) has lived in exile since November 2015
A US State Department report says "forces under Hun Sen and the Cambodian People's Party have committed frequent and large-scale abuses, including extrajudicial killings and torture, with impunity". According to the 2016 Global Slavery Index, an estimated 256,800 people are enslaved in modern-day Cambodia, or 1.65% of the population.
Forced land evictions by senior officials, security forces, and government-connected business leaders are commonplace in Cambodia. Land has been confiscated from hundreds of thousands of Cambodians over more than a decade for the purpose of self-enrichment and maintaining power of various groups of special interests. Credible non-governmental organisations estimate that "770,000 people have been adversely affected by land grabbing covering at least four million hectares (nearly 10 million acres) of land that have been confiscated", says Paris-based International Federation for Human Rights.
Tourism
The tourism industry is the country's second-greatest source of hard currency after the textile industry. International visitor arrivals in 2018 topped six million, a ten-fold increase since the beginning of the 21st century.
Besides Phom Penh and Angkor Wat, other tourist destinations include Sihanoukville in the southwest which has several popular beaches and Battambang in the northwest, both of which are popular stops for backpackers who make up a significant portion of visitors to Cambodia.The area around Kampot and Kep including the Bokor Hill Station are also of interest to visitors. Tourism has increased steadily each year in the relatively stable period since the 1993 UNTAC elections.
Most international arrivals in 2018 were Chinese. Tourism receipts exceeded US$4.4 billion in 2018, accounting for almost ten percent of the kingdom's gross national product. The Angkor Wat historical park in Siem Reap Province, the beaches in Sihanoukville, the capital city Phnom Penh, and Cambodia's 150 casinos (up from just 57 in 2014) are the main attractions for foreign tourists.
Cambodia's reputation as a safe destination for tourism however has been hindered by civil and political unrest and several high-profile examples of serious crime committed against tourists visiting the kingdom.
Cambodia's tourist souvenir industry employs a lot of people around the main places of interest. The quantity of souvenirs that are produced is not sufficient to face the increasing number of tourists and a majority of products sold to the tourists on the markets are imported from China, Thailand, and Vietnam. Some of the locally produced souvenirs include:
Krama (traditional scarf)
Ceramics
Soap, candles, spices
Wood carvings, lacquerware, silver plate
Painted bottles containing infused rice wine