In the 19th century, Burmese rulers, whose country had not previously been of particular interest to European traders, sought to maintain their traditional influence in the western areas of Assam, Manipur and Arakan. Pressing them, however, was the British East India Company, which was expanding its interests eastwards over the same territory. Over the next sixty years, diplomacy, raids, treaties and compromises, known collectively as the Anglo-Burmese Wars, continued until Britain proclaimed control over most of Burma. With the fall of Mandalay, all of Burma came under British rule, being annexed on 1 January 1886.