After the Third Anglo-Burmese War in 1885, Upper Burma was annexed, and the following year, the province of "Burma" in British India was created, becoming a "major" province (a lieutenant-governorship) in 1897. This arrangement lasted until 1937, when Burma began to be administered separately by the Burma Office under the Secretary of State for India and Burma. British rule was disrupted during the Japanese occupation of much of the country during the World War II. Burma achieved independence from British rule on 4 January 1948.