On October 9, the Cambodian monarchy was abolished, and the country was renamed the Khmer Republic.

On New Year's Day 1975, Communist troops launched an offensive which, in 117 days of the hardest fighting of the war, collapsed the Khmer Republic.

By 1979, the Khmer Rouge had fled the country, while the People's Republic of Kampuchea was being established.

After four years of rule, the Khmer Rouge regime was removed from power in 1979 as a result of an invasion by the Socialist Republic of Vietnam and was replaced by moderate, pro-Vietnamese Communists.

The Khmer Rouge was overthrown in 1979 by an invasion by Vietnam that assisted the establishment of a new Marxist-Leninist regime, the People's Republic of Kampuchea, that opposed the policies of the Khmer Rouge.

* 1970 – The Khmer Republic is proclaimed in Cambodia.

In neighboring Cambodia, at that time known as the Khmer Republic, the Khmer Rouge used siege tactics to cut off supplies from Phnom Penh to other government-held enclaves in an attempt to break the will of the government to continue fighting.

* October 9 – The Khmer Republic is proclaimed in Cambodia which begins the Civil War with the Khmer Rouge.

* April 17 – Following several weeks of successful fighting the Khmer Republic surrenders there fore the Cambodian Civil War ends, in which the Communist party of the Khmer Rouge guerilla forces capture Phnom Penh, prompting a forcible mass evacuation of the city and starting off the infamous genocide.

* Khmer Republic, the name of Cambodia from 1970 to 1975

He led a military coup against Prince Norodom Sihanouk and became the self-proclaimed President of the newly created Khmer Republic.

The Khmer Republic was formally declared that October, and Sihanouk – who had formed a government-in-exile, the GRUNK, incorporating the Khmer Rouge communists – was condemned to death in absentia.

Flag of the Khmer Republic.

The first priority of the Khmer Rouge after conquering Cambodia and overthrowing the Khmer Republic was to execute all its leaders and high officials without delay, a fate that Lon Nol escaped.

As the United States had no diplomatic contact with the Khmer Rouge regime in Cambodia, President Ford instructed Secretary of State Henry Kissinger to urge the People's Republic of China to persuade the Khmer Rouge to release the Mayaguez and its crew.

The Khmer Republic or République Khmère, was the republican government of Cambodia that was formally declared on October 9, 1970.

The Khmer Republic was disestablished in 1975 and was followed by the totalitarian state known as Democratic Kampuchea.

Formally declared on October 9, 1970, the Khmer Republic was a right-wing pro-United States military-led government headed by General Lon Nol and Prince Sisowath Sirik Matak that took power in the March 18, 1970 coup against Prince Norodom Sihanouk, then the country's head of state.

Documents uncovered from the Soviet archives reveal that the North Vietnamese invasion of Cambodia in 1970 was launched at the request of the Khmer Rouge after negotiations with Nuon Chea.

Branded alternately a communist and an agent of the United States Central Intelligence Agency ( CIA ) by Sihanouk, he remained in exile until Lon Nol established the Khmer Republic in 1970.

The Cambodian Civil War was a conflict that pitted the forces of the Communist Party of Kampuchea ( known as the Khmer Rouge ) and their allies the Democratic Republic of Vietnam ( North Vietnam ) and the Viet Cong against the government forces of Cambodia ( after October 1970, the Khmer Republic ), which were supported by the United States ( U. S .) and the Republic of Vietnam ( South Vietnam ).

Thus, it has been argued that the US intervention in Cambodia contributed to the eventual seizure of power by the Khmer Rouge, that grew from 14, 000 in number in 1970 to 70, 000 in 1975.

This view has been disputed, with documents uncovered from the Soviet archives revealing that the North Vietnamese invasion of 1970 was launched at the explicit request of the Khmer Rouge following negotiations with Nuon Chea.

When Lon Nol usurped power from Sihanouk in 1970 during a bloodless coup, Hun Nal gave up his education to join the Khmer Rouge.

Sihanouk was deposed in a March 1970 coup by his cousin, Prince Sisowath Sirik Matak and rightist General Lon Nol, who proclaimed the Khmer Republic that October.

The princes who headed the party-Ranariddh, Sihanouk's half-brother Norodom Sirivudh, and Sisowath Sirirath ( the son of Sirik Matak, who deposed Sihanouk in the 1970 coup )-disagreed violently over corruption, Vietnam, the Khmer Rouge, land reform, and other issues.

It was used until October 9, 1970, when a new flag was introduced for Lon Nol's Khmer Republic that lasted until the takeover of the Khmer Rouge in 1975.

During the Cambodian Civil War ( Khmer Rouge Reign ), her son Sean Flynn was working as a freelance photo journalist under contract to Time magazine when he and fellow journalist Dana Stone went missing on the road south of Phnom Penh, Cambodia, on April 6, 1970.

After the Cambodian coup of 1970, and the subsequent establishment of the Khmer Republic under Lon Nol, Sihanouk was to join with his former Communist enemies in forming the GRUNK, a Beijing-based government-in-exile.

Observers reported that in 1980 there were more registered Khmer Christians among the refugees in camps in Thailand than in all of Cambodia before 1970.

After the coup of 1970 overthrew the government of Sihanouk, the Khmer Communists, including Khieu Samphan, joined forces with the now-deposed Head of State in establishing an anti-government coalition known as the Gouvernement Royal d ' Union Nationale du Kampuchéa ( GRUNK ).

Sirik Matak was mainly notable for his involvement in Cambodian politics, particularly for his involvement in the 1970 right-wing coup against his cousin, Prince Norodom Sihanouk, and for his subsequent establishment, along with Lon Nol, of the Khmer Republic.

It was known as the Khmer Republic national football team from 1970 to 1975.

King Norodom Sihanouk ( later, Prince, then again King ), proclaimed Cambodia's independence in 1949 ( granted in full in 1953 ) and ruled the country until March 18, 1970, when he was overthrown by General Lon Nol, who established the Khmer Republic.

The Austro-Asiatic ( Austroasiatic ) languages, in recent classifications synonymous with Mon – Khmer, are a large language family of Southeast Asia, also scattered throughout India and Bangladesh.

These form thirteen established families ( plus perhaps Shompen, which is poorly attested, as a fourteenth ), which have traditionally been grouped into two, as Mon – Khmer and Munda.

However, recent classifications have abandoned Mon – Khmer as a taxon, either reducing it in scope or making it synonymous with the larger family ( Diffloth 2005, Sidwell 2009 ).

Much work has been done on the reconstruction of Proto-Mon – Khmer in Harry L. Shorto's Mon – Khmer Comparative Dictionary.

Little work has been done on the Munda languages, which are not well documented ; with their demotion from a primary branch, Proto-Mon – Khmer becomes synonymous with Proto-Austro-Asiatic.

Sidwell ( 2005 ) reconstructs the consonant inventory of Proto-Mon – Khmer as follows:

* Khmer New Year in Cambodia – April 13

It is also the earliest recorded and earliest written language of the Mon – Khmer family, predating Mon and by a significant margin Vietnamese.

Pre-Angkorian Khmer, the language after its divergence from Proto-Mon – Khmer until the ninth century, is only known from words and phrases in Sanskrit texts of the era.

Some historians have cited the U. S. intervention and bombing campaign ( spanning 1965 – 1973 ) as a significant factor leading to increased support of the Khmer Rouge among the Cambodian peasantry.

* 1971 – Cambodian Civil War: Khmer Rouge rebels intensify assaults on Cambodian government positions, forcing their retreat from Kompong Thmar and nearby Ba Ray.

* 1998 – Leaders of the Khmer Rouge apologize for the 1970s genocide in Cambodia that claimed over 1 million lives.

* 1997 – Before fleeing his northern stronghold, Khmer Rouge leader Pol Pot orders the killing of his defense chief Son Sen and 11 of Sen's family members.

* 1979 – Third Indochina War – Cambodian – Vietnamese War: Phnom Penh falls to the advancing Vietnamese troops, driving out Pol Pot and the Khmer Rouge.

** Khmer Pradal Serey – similar to Muay Thai with an emphasis on elbow techniques ( Ring-wise ).

The history of the communist movement in Cambodia can be divided into six phases: the emergence of the Indochinese Communist Party ( ICP ), whose members were almost exclusively Vietnamese, before World War II ; the 10-year struggle for independence from the French, when a separate Cambodian communist party, the Kampuchean ( or Khmer ) People's Revolutionary Party ( KPRP ), was established under Vietnamese auspices ; the period following the Second Party Congress of the KPRP in 1960, when Saloth Sar ( Pol Pot after 1976 ) and other future Khmer Rouge leaders gained control of its apparatus ; the revolutionary struggle from the initiation of the Khmer Rouge insurgency in 1967 – 68 to the fall of the Lon Nol government in April 1975 ; the Democratic Kampuchea regime, from April 1975 to January 1979 ; and the period following the Third Party Congress of the KPRP in January 1979, when Hanoi effectively assumed control over Cambodia's government and communist party.

In the central and southern mountains, Mon – Khmer tribes known as Lao Theung or upland Lao, predominate.