When did the People's Republic of Kampuchea exist?

The People's Republic of Kampuchea existed 1979–1989. On this map it is drawn 1979–1995.

How large was the People's Republic of Kampuchea?

At its greatest extent drawn on this map, the People's Republic of Kampuchea covered about 186,000 km². That is the largest area the border data gives it across the years it is drawn, not necessarily its greatest extent in history.

Southeast Asia · The modern states

People's Republic of Kampuchea

Socialist republic (Vietnamese-backed) · 1979–1989

The People's Republic of Kampuchea was founded on 8 January 1979, one day after Vietnamese forces captured Phnom Penh from the Khmer Rouge. It was installed by the Kampuchean United Front for National Salvation (KUFNS), a body of Khmer Rouge defectors and exiles led by Heng Samrin and Pen Sovann.

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Type: Socialist republic (Vietnamese-backed)
Existed: 1979–1989
Shown on the map: 1979–1995
Peak area: 186k km²
Region: Southeast Asia

Origins & foundation

Political history & notable leaders

Heng Samrin headed the ruling People's Revolutionary Council until the constitution of 25 June 1981 reorganised the state. Pen Sovann served as first prime minister in 1981 but was removed that December; Chan Sy followed (1982–84), and Hun Sen became prime minister in 1984–85, beginning his four-decade dominance. De facto leadership passed from Heng Samrin and Say Phouthang (1981–85) to Hun Sen (1985–90) and Chea Sim (1990–92).

Economy, culture & society

The PRK governed a devastated country of about 6.6 million people (1980), suffering famine in 1979–80 that affected some 500,000. It cautiously restored normal life: seven monks were re-ordained in September 1979 and some 700 temples repaired, family farming revived, and basic markets reopened — all under Vietnamese tutelage.

Territorial extent & key events

Internationally isolated, the PRK was recognised only by the Soviet bloc; Cambodia's UN seat stayed with the Khmer Rouge-led Coalition Government of Democratic Kampuchea. It fought a grinding border civil war against the Khmer Rouge, KPNLF and FUNCINPEC guerrillas, building the vast K5 border-defence belt.

Conflicts & turning points

Vietnamese forces withdrew by 26 September 1989, and the state renamed itself the State of Cambodia on 30 April 1989, abolishing capital punishment, fully restoring Buddhism and embracing market reforms. The ruling party abandoned communism on 18 October 1991.

Legacy & present-day status

The Paris Peace Agreements of 23 October 1991 ended the conflict, and the UN Transitional Authority (UNTAC) from March 1992 prepared the 1993 elections that created the modern Kingdom of Cambodia. The PRK's party, the CPP, remains in power under the Hun family.

Common questions

What was the People's Republic of Kampuchea?: The People's Republic of Kampuchea was founded on 8 January 1979, one day after Vietnamese forces captured Phnom Penh from the Khmer Rouge. It was installed by the Kampuchean United Front for National Salvation (KUFNS), a body of Khmer Rouge defectors and exiles led by Heng Samrin and Pen Sovann.
When did the People's Republic of Kampuchea exist?: The People's Republic of Kampuchea existed 1979–1989. On this map it is drawn 1979–1995.
How large was the People's Republic of Kampuchea?: At its greatest extent drawn on this map, the People's Republic of Kampuchea covered about 186,000 km². That is the largest area the border data gives it across the years it is drawn, not necessarily its greatest extent in history.
Where was the People's Republic of Kampuchea?: Internationally isolated, the PRK was recognised only by the Soviet bloc; Cambodia's UN seat stayed with the Khmer Rouge-led Coalition Government of Democratic Kampuchea. It fought a grinding border civil war against the Khmer Rouge, KPNLF and FUNCINPEC guerrillas, building the vast K5 border-defence belt.
Who ruled the People's Republic of Kampuchea?: Heng Samrin headed the ruling People's Revolutionary Council until the constitution of 25 June 1981 reorganised the state. Pen Sovann served as first prime minister in 1981 but was removed that December; Chan Sy followed (1982–84), and Hun Sen became prime minister in 1984–85, beginning his four-decade dominance.
How did the People's Republic of Kampuchea end?: The Paris Peace Agreements of 23 October 1991 ended the conflict, and the UN Transitional Authority (UNTAC) from March 1992 prepared the 1993 elections that created the modern Kingdom of Cambodia. The PRK's party, the CPP, remains in power under the Hun family.
What did the economy and culture of the People's Republic of Kampuchea rest on?: The PRK governed a devastated country of about 6.6 million people (1980), suffering famine in 1979–80 that affected some 500,000. It cautiously restored normal life: seven monks were re-ordained in September 1979 and some 700 temples repaired, family farming revived, and basic markets reopened — all under Vietnamese tutelage.

Sources

Every source below was consulted while writing this entry.

Wikipedia: People's Republic of Kampuchea en.wikipedia.org/wiki/People%27s_Republic_of_Kampuchea

This entry was written from the sources above and last updated 10 September 2026.

This entry was researched and drafted with AI from the sources above, and has not been reviewed by a historian. How entries are made

Text available under CC BY-SA 4.0: reuse it with a credit to The World Through Time and a link to this page. Passages drawing on the Wikipedia articles listed above are also licensed CC BY-SA 4.0 by their contributors.

Border geometry for the map itself comes from Cliopatria v0.12 (Seshat Global History Databank, CC-BY-4.0).

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