By early December 1960 Vientiane was held by Captain Kong Le's Neutralist forces while General Phoumi Nosavan's rightist army advanced from Savannakhet. On December 8 Colonel Kouprasith Abhay moved from Camp Chinaimo with a scratch force, seized the radio station and strategic points in the capital, and Prime Minister Souvanna Phouma attempted to relieve Kong Le of his command. The government collapsed: on December 9 Souvanna Phouma, viewing battle as inevitable, delegated his powers to the military and flew with three ministers to Phnom Penh, Cambodia.
The next morning information minister Quinim Pholsena flew to Hanoi to seek Soviet and North Vietnamese military aid. The Neutralist government's fall from within set the stage for the Battle of Vientiane days later.
Researched Details
Researched
Independent research, added record by record. Hover any label for what it means.
Target identified in Coup Atlas research: Prime Minister Souvanna Phouma, who delegated his powers to the military and fled to Phnom Penh, Cambodia on December 9, 1960.
RESEARCHED NAME
Key figures
Souvanna Phouma (Neutralist prime minister, fled to Cambodia)
Kouprasith Abhay (colonel who seized key points in Vientiane on December 8)
Kong Le (Neutralist paratroop commander holding the capital)
Phoumi Nosavan (rightist general advancing on Vientiane)
Quinim Pholsena (information minister sent to Hanoi for aid)
Sources
On 8 December Colonel Kouprasith Abhay ventured from Camp Chinaimo with a scratch force of two companies of airborne soldiers and 150 military clerks, seized the radio station and strategic points in the town, and announced allegiance to Souvanna Phouma and opposition to Kong Le.
On 9 December Souvanna Phouma appointed General Southone to head the nation, then fled to Phnom Penh, Cambodia; at 1030 hours on 10 December representatives of Kong Le departed for Hanoi to formalize a pact beginning a Soviet-backed airlift.
Souvanna Phouma viewed battle as inevitable and, accompanied by three ministers, flew to Phnom Penh on December 9, having delegated his powers to the military; the following morning information minister Quinim Pholsena flew to Hanoi on a mission to seek Soviet and North Vietnamese military aid.
SOURCE REVIEWEDLaos: A Country Study, Library of Congress Federal Research Division, chapter The Battle of Vientianeopen source ↗
On December 8 Souvanna attempted to dismiss Kong Le from his military command, but Kong Le instead removed Souvanna the next day; Souvanna turned power over to the military and, with three of his ministers, flew to the Cambodian capital of Phnom Penh.
SOURCE REVIEWEDEBSCO Research Starters, Collapse of the Laotian Government Leads to Civil Waropen source ↗
Editorial Note
Accounts differ on the mechanics of December 8 and 9: some emphasize Kouprasith Abhay's seizure of key points, others the mutual dismissals between Souvanna Phouma and Kong Le; all agree the prime minister delegated power to the military and fled to Cambodia on December 9, matching the dataset fate deposed; fled the country. Keep distinct from Kong Le's August 9, 1960 coup (batch 10) and from the December 13 Battle of Vientiane record that follows.
Cross-Reference
Datasets agree. At least two of the three reference datasets we check against carry this event, and none of them disagrees about its date or its result.
Identifiers for finding this same event in the other datasets:
Coup Atlas research identifies the target as: Prime Minister Souvanna Phouma, who delegated his powers to the military and fled to Phnom Penh, Cambodia on December 9, 1960..
Baseline coding: Incumbent executive removed from power. Recorded leader fate: deposed; fled the country. The baseline file does not name individual targets; researched names are kept in a separate layer.
Baseline Dataset Citation
Cline Center Coup d’État Project Dataset, v2.2.2
Peyton, Buddy, Joseph Bajjalieh, Michael Martin, and Andrea Gerald. 2026. Cline Center Coup d’État Project Dataset. Cline Center for Advanced Social Research. V.2.2.2. February 17. University of Illinois Urbana-Champaign. doi: 10.13012/B2IDB-9651987_V10
“Laos General Sets Up Interim Military Regime: LAOS,” December 11, 1960
This is the citation trail carried by the baseline dataset, grouped by outlet and rejoined from the line-wrapped original. Coup Atlas has not independently re-checked every document; read the original before citing a specific claim. URLs the import damaged beyond safe repair are shown as plain text and listed in citations-report.md. How this list is built →