In 1824 CE, the First Anglo-Burmese War broke out. The Burmese was utterly defeated and were expelled from Assam, Cachar and Manipur. Finally, the Burmese monarch sued for peace and the treaty of Yandabo was signed by both parties on 24 February 1826. According to the terms and conditions of the treaty, the Burmese monarch renounced all claims over Assam and British became the masters of the Brahmaputra valley.