Northeast India when they became relatively isolated from traditional trading partners such as Bhutan and Myanmar. Many of the peoples in present-day Mizoram, Meghalaya and Nagaland converted to Christianity under the influence of British (Welsh) missionaries. In the early 19th century, both the Ahom and the Manipur kingdoms fell to a Burmese invasion. The ensuing First Anglo-Burmese War resulted in the entire region coming under British control. In the colonial period (1826–1947), North East India was made a part of Bengal Province from 1839 to 1873, when Assam became its own province. After Indian Independence from British Rule in 1947, the Northeastern
British rule in Burma War, which lasted less than two weeks during November 1885. The British government justified their actions by claiming that the last independent king of Myanmar, Thibaw Min, was a tyrant and that he was conspiring to give France more influence in the country. British troops entered Mandalay on 28 November 1885. Thus, after three wars gaining various parts of the country, the British finally occupied all the area of present-day Myanmar, making the territory a Province of British India on 1 January 1886. The British decided to annex all of Upper Burma as a colony and to make the whole