In Arakan, Indian XV Corps under Lieutenant General Philip Christison renewed the advance on the Mayu peninsula. Ranges of steep hills channelled the advance into three attacks each by an Indian or West African division. The 5th Indian Infantry Division captured the small port of Maungdaw on 9 January 1944. The Corps then prepared to capture two railway tunnels linking Maungdaw with the Kalapanzin valley but the Japanese struck first. A strong force from the Japanese 55th Division infiltrated Allied lines to attack the 7th Indian Infantry Division from the rear, overrunning the divisional HQ.
