The Kingdom of Cambodia, formerly known as Kampuchea, Khmer: ព្រះរាជាណាចក្រកម្ពុជា or Preăh Réachéa Nachâk Kâmp$5;chéa, derived from the Indian language of Sanskrit Kambujadesa, is a country in Southeast Asia that borders Thailand to the west and northwest, Laos to the north, Vietnam to the east, and the Gulf of Thailand to the south. The geography of Cambodia is dominated by the Mekong River (Khmer: Tonle Thom (ទន្លA533;?ធំ) or "the great river") and the Tonlé Sap (ទន្លA533;?សាប; "the fresh water lake").
The kingdom is a constitutional monarchy with Norodom Sihamoni as king who has reigned since 2004. Phnom Penh is the kingdom's capital and largest city, and is the center of political, commercial, industrial and cultural activities. Siem Reap, a city located near the famous ruins of Angkor Wat is the gateway to the Angkor region, and is Cambodia's main destination for tourism. Battambang, the largest city in western Cambodia, is known for its rice production, and Sihanoukville, a coastal city, is the primary sea port and beach resort.
Cambodia has an area of 181,035 square kilometres (69,898 sq mi) and a population of over 14 million ethnic Khmer. A citizen of Cambodia is usually identified as "Cambodian" or "Khmer", though they strictly refer to ethnic Khmers. Most Cambodians are Theravada Buddhists, but the country also have a minority number of Muslim Cham, as well as ethnic Chinese, Vietnamese and small animist hill tribes.
Agriculture has long been the most important sector to the Cambodian economy, with around 59% of the population relying on agriculture for their livelihood (with rice being the principal crop). Other important sectors include garments, construction and tourism - foreign visitors to Angkor Wat numbered more than 4 million in 2007. In 2005, oil and natural gas deposits were found beneath Cambodia's territorial waters, and once commercial extraction begins in 2011, the oil revenues could profoundly affect Cambodia's economy.

Agriculture has long been the most important sector of the Cambodian economy, with around 59% of the population relying on agriculture for their livelihood (with rice being the principal crop). Garments, tourism, and construction are also important, yielded, foreign visitors to Angkor Wat numbered more than 4 million. In 2005, oil and natural gas deposits were found beneath Cambodia's territorial waters, and once commercial extraction begins in 2011, the oil revenues could profoundly affect Cambodia's economy. Observers fear much of the revenue could end up in the hands of the political elites if not monitored correctly.

City and province sizes

On 22 December 2008, King Norodom Sihamoni signed a Royal Decree that changed the municipalities of Kep, Pailin and Sihanoukville into provinces, as well as adjusting several provincial borders.