Following the Sack of Ayutthaya and the collapse of the Ayutthaya Kingdom during the Burmese–Siamese War (1765–1767), a power vacuum left Siam divided into 5 separate states—Phimai, Phitsanulok, Sawangburi, Nakhon Si Thammarat, and Thonburi. The state of Thonburi, led by Taksin, would ultimately prevail, subjugating its rivals to successfully reunify Siam under the Thonburi Kingdom by 1770/71.