=18th Century=

1759: Burmese invasion of Ayutthaya: Burma invades Siam, leading to the fall of Ayutthaya.

1767: Fall of Ayutthaya: Ayutthaya, the capital of Siam, is captured and sacked by Burmese forces.

1767-1775: Burmese occupation of Siam: Burma establishes control over Siam.

1775: Siamese Revolt: Siamese forces, with the help of local militias, expel Burmese forces from Siam.