The treaty between Kingdom of Siam and Great Britain commonly known as the Burney Treaty was signed at Bangkok on 20 June 1826 by Henry Burney, an agent of British East India Company, for Britain, and King Rama III for Siam. It followed an earlier treaty of 24 February 1826, in which Siam became an ally of Britain against the Kingdom of Ava (Burma), with which Britain was at war. A Siamese army was raised and equipped, but took no serious part in the war due to ill-feeling and suspicion arising from the Siamese invasion of Kedah in 1821.