original_query: What actions did the British take to attack the Burmese positions in Arakan?
query: What actions did the British take to attack the Burmese positions in Arakan during the First Anglo-Burmese War?
answer: On February 1, 1825, an invasion force of 11,000 British soldiers, supported by gunboats, armed cruisers, and cavalry, attacked Burmese positions in Arakan.  After nearly two months of fighting, they reached the main Burmese garrison at Mrauk-U, launching an attack on March 29, 1825, and defeating the Burmese forces on April 1.