Popular among his people, Sultan Mansur in the mid-18th century forged a strong alliance among the Malays to counter the growing influence of the Bugis.[1] In 1871, Terengganu became a vassal state of the Thai Rattanakosin Kingdom, and sent tribute every year called bunga mas.This occurred under the reign of Sultan Omar Riayat Shah, who was remembered as a devout ruler who promoted trade and stable government.In 1943, the Thai government under prime minister Field Marshal Plaek Pibulsonggram took over the administration of Terengganu from the Japanese and continued to recognise Sultan Ali Shah.[4] According to Sultan Ali, the British Military Administration wanted him removed for his refusal to sign the Malayan Union treaty and they also disapproved of his character.