The Second Anglo-Burmese War started in 1852, and by 1853 the English had annexed Pegu and the region up to Toungoo.
The Burmese king Mindon Min was forced to shift his capital to Mandalay. The English had thus gained control over the entire coast of the Bay of Bengal.
Later in the century, in 1885, the English finally annexed the whole of Burma on the pretext that king Thibaw Min was a tyrant and intriguing with the French in Vietnam to Weaken English control over Asia. Burma was made into a province of British India.