Lao rebellion (1826–1828)

The Lao Rebellion of 1826–1828 (also known as Anouvong's Rebellion or the Vientiane-Siam War) was an attempt by King Anouvong (Xaiya Sethathirath V) of the Kingdom of Vientiane to end the suzerainty of Siam and recreate the former kingdom of Lan Xang. In January 1827 the Lao armies of the kingdoms of Vientiane and Champasak moved south and west across the Khorat Plateau, advancing as far as Saraburi, just three days' march from the Siamese capital of Bangkok.

Source: Wikipedia — Lao rebellion (1826–1828) (CC BY-SA 4.0)