HistoryData
Historical Conflict

Battle of Vientiane

The Battle of Vientiane ended the 1960 Laotian coup crisis, deepening U.S. and Thai involvement in the Laotian Civil War.

Duration & Scope

1960 ongoing

< 1 year

Estimated Total Casualties

600

Key Facts

Duration
13–16 December 1960 (4 days)
Civilian dead
~600
Homes destroyed
~600
Displaced civilians
~7,000 left homeless
Outcome
Royal Lao Government forces recaptured Vientiane

Strategic Narrative Overview

Fighting erupted in Vientiane from 13 to 16 December 1960, as Phoumi Nosavan's Royal Lao Army forces, supported by Thai military aid and CIA assistance, pressed into the capital against Kong Le's Neutralist Armed Forces. Artillery exchanges and street fighting caused extensive civilian casualties and widespread destruction throughout the city before the neutralist defenders were overwhelmed and forced to withdraw.

01 / The Origins

The Battle of Vientiane arose from the unstable political situation in Laos during the early Cold War. In August 1960, neutralist paratrooper Captain Kong Le staged a coup in Vientiane, installing a neutralist government. Right-wing General Phoumi Nosavan, backed by the United States CIA and the Royal Thai Government, launched a counter-offensive to retake the capital and restore a pro-Western administration in the Kingdom of Laos.

03 / The Outcome

By 16 December 1960, General Phoumi Nosavan had secured Vientiane, ending the immediate coup crisis. Kong Le's neutralist forces retreated north to the Plain of Jars, where they entered an uneasy alliance with the Pathet Lao and North Vietnamese Army. The battle accelerated U.S. and Thai military commitment to Laos as communist forces consolidated control over the country's northeastern quarter.

Belligerents & Mobilization Analysis

Side A

3 belligerents

Royal Lao Army (Phoumi faction)Royal Thai GovernmentU.S. Central Intelligence Agency
Key Commanders

Phoumi Nosavan.

Side B

1 belligerent

Neutralist Armed Forces (Kong Le)
Key Commanders

Kong Le.

Total Casualties (all sides)
600
Outcome
Phoumi Nosavan recaptured Vientiane; neutralist forces retreated to the Plain of Jars

Kinetic Engagement Axis

Major engagements timeline (1960–present)Timeline of major military engagements plotted chronologically.1960present1960Battle of Vienti…Allied

Scroll horizontally to view full axis. Events plotted relatively.

Side A victorySide B victoryInconclusiveDecisive / turning point

Location

Map of Vientiane, LaosMap of Vientiane, LaosVientiane, Laos