Burmese–Siamese War (1785–1786)

January 1785 – January 1786

Result Siamese defensive victory; portions of Western Siam depopulated until the 1870s

King Bodawpaya of Burma invaded Siam with several armies along a wide front. The Siamese under Rama I defeated them, notably at Lat Ya, and the invasion failed.

Rattanakosin Kingdom

Konbaung dynasty

Strength and losses

Strength
70,000
Casualties
15,000
Strength
134,000–144,000
Casualties
70,000