On the night of August 8-9, 1960, Captain Kong Le, a 26-year-old paratroop commander in the Royal Lao Army, led about 800 soldiers of the 2nd Parachute Battalion in a swift, bloodless coup that seized the Laotian capital Vientiane while most of the government was away in the royal capital Luang Prabang attending funeral rites for the late king. Kong Le, motivated by anger at government corruption, war profiteering, and the foreign interference fueling the Laotian conflict, demanded an end to the civil war and the formation of a neutralist government. His forces set up a revolutionary committee, proclaimed loyalty to the king, and called on Prince Souvanna Phouma, the neutralist former premier, to form a government.
The coup toppled the rightist administration of Prime Minister Somsanith and briefly displaced the strongman Phoumi Nosavan, who had himself taken power the previous December. Phoumi refused to accept it and, with U.S.
and Thai backing, launched a counter-coup that recaptured Vientiane in December 1960, plunging Laos deeper into civil war.
Researched Details
Researched
Independent research, added record by record. Hover any label for what it means.
Target identified in Coup Atlas research: Government of Prince Somsanith and strongman Phoumi Nosavan, Kingdom of Laos (displaced by Kong Le's neutralist coup; Phoumi placed under pressure but escaped to mount a counter-coup)
RESEARCHED NAME
Key figures
Kong Le (paratroop captain who led the coup)
Souvanna Phouma (neutralist prince called to form a government)
Phoumi Nosavan (rightist strongman displaced, who later counter-attacked)
Somsanith (prime minister whose government fell)
Sources
On the night of 8-9 August 1960 Captain Kong Le, commanding the 2nd Parachute Battalion of the Royal Lao Army, led about 800 paratroopers in seizing Vientiane in a bloodless coup against the rightist government, motivated by grievances over corruption, war profiteering, and economic hardship, and demanding a neutralist administration under Souvanna Phouma.
The 2nd Parachute Battalion under Captain Kong Le seized complete control of Vientiane during the night of 8-9 August while most of the Somsanith government was in Luang Prabang for the late king's funeral rites; the coup leaders set up a revolutionary committee proclaiming loyalty to the king and contact with Souvanna Phouma.
SOURCE REVIEWEDKeesing's Record of World Events (1960)open source ↗
General Phoumi Nosavan, who had established himself as the strongman running Laos in the bloodless coup of 25 December 1959, was himself overthrown on 10 August 1960 by the young paratroop captain who had backed him in that earlier coup.
Of all the displaced government officials, only Phoumi Nosavan, holding the post of defense minister, resisted being overthrown; on 10 August he flew to Bangkok to solicit support from his first cousin, the Thai dictator Sarit Thanarat, then set up a resistance headquarters at Savannakhet.
The Cline dataset codes 9 August 1960 with the leader placed under house arrest; sources date the coup to the night of 8-9 August (some say 10 August for the political overturn). It displaced the Somsanith government and the strongman Phoumi, who escaped to Bangkok and mounted a U.S.-backed counter-coup that retook Vientiane in December 1960. Grokipedia, Keesing's, Military Wiki, and Wikipedia were read directly. This coup follows the December 1959 Phoumi coup (another record in this dataset) and deepened the Laotian Civil War.
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: Government of Prince Somsanith and strongman Phoumi Nosavan, Kingdom of Laos (displaced by Kong Le's neutralist coup; Phoumi placed under pressure but escaped to mount a counter-coup).
Baseline coding: Incumbent executive removed from power. Recorded leader fate: deposed; placed under house arrest. 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
“COUP BY LEFTISTS IN LAOS REPORTED; Rebels Rule Capital, Hold Pro-U.S. Leaders Under Arrest, Thailand Hears COUP BY LEFTISTS IN LAOS REPORTED,” August 9, 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 →