Lao–Siamese War (1778–1779)
| Lao–Siamese War (1778–1779) | |||||||||
|---|---|---|---|---|---|---|---|---|---|
Blue represents Vientiane and Champasak. Red represents the Siamese and allies. | |||||||||
| |||||||||
| Belligerents | |||||||||
|
Kingdom of Vientiane Kingdom of Champasak |
Thonburi Kingdom (Siam) Kingdom of Luang Phrabang Kingdom of Cambodia | ||||||||
| Commanders and leaders | |||||||||
|
Ong Boun Nanthasen Phaya Supho Sayakumane |
Taksin Chaophraya Chakri Chaophraya Surasi Phraya Nakhon Ratchasima Boonkhong Phraya Phetchabun Pli Surinyavong II Ang Non II | ||||||||
| Strength | |||||||||
| At least 30,000 | 33,000 | ||||||||
.svg){kind=link}
.svg){kind=link}
.svg){kind=link}
.svg){kind=link}
.svg){kind=link}
Lao–Siamese War or the Siamese Invasion of Laos (1778–1779) is the military conflict between Thonburi Kingdom of Siam (now Thailand) and the Lao kingdoms of Vientiane and Champasak. The war resulted in all three Lao kingdoms of Luang Phrabang, Vientiane and Champasak becoming Siamese tributary vassal kingdoms under Siamese suzerainty and domination in Thonburi and the subsequent Rattanakosin Period.