The 82nd Division (supported by 28th Anti-tank Regiment IA and 33rd Mountain Artillery Regiment IA) then crossed a steep and jungle-covered mountain range to converge with the British 81st (West African) Division on Myohaung near the mouth of the Kaladan River. This move forced the Japanese to evacuate the Mayu peninsula which they had held for almost four years and retreat south along the coast. As they retreated, British commandos from the 3rd Commando Brigade and units of the Indian 25th Infantry Division landed in inlets and "chaungs" ahead of them. Caught between the troops landing from the sea and the pursuing 82nd African Division, the Japanese suffered heavy casualties.