The British Military Administration (BMA) was the interim administrator of British Malaya between the end of World War II and the establishment of the Malayan Union in 1946. Specifically, the entity lasted from September 1945 to April 1946. The Federated Malay States, the Unfederated Malay States as well as the Straits Settlement including Singapore were placed under temporary British military rule. During the same time, Singapore became the headquarters of the British Governor General in Southeast Asia.