Passage: The First Anglo-Burmese War, also known as the First Burma War, (Burmese: ပထမ အင်္ဂလိပ် မြန်မာ စစ်; [pətʰəma̰ ɪ́ɴɡəleiʔ mjəmà sɪʔ]; 5 March 1824 – 24 February 1826) was the first of three wars fought between the British and Burmese empires in the 19th century. The war, which began primarily over the control of Northeastern India, ended in a decisive British victory, giving the British total control of Assam, Manipur, Cachar and Jaintia as well as Arakan Province and Tenasserim. The Burmese were also forced to pay an indemnity of one million pounds sterling, and sign a commercial treaty.This war was the longest and most expensive war in British Indian history. Fifteen thousand European and Indian soldiers died, together with an unknown number of Burmese military and civilian casualties. The high cost of the campaign to the British, 5–13 million pounds sterling (£413 million – £1.07 billion as of 2018), contributed to a severe economic crisis in British India which cost the East India Company its remaining privileges.For the Burmese Empire, it was the beginning of the end of their independence. The Third Burmese Empire, for a brief time the terror of British India, was crippled and no longer a threat to the eastern frontier of British India. The Burmese would be crushed for years to come by repaying the heavy indemnity of one million pounds (then US$5 million), a large sum at that time. The British would wage two more wars against a much-weakened Burma, and swallow up the entire country by 1885.

Question: The Anglo-Burmese War was started because of conflict over which region?
Northeastern India