 Following this disaster Imamura directed the 38th Division to dispatch a battalion to the islands, and 750 men of the 2nd Battalion, 1st Independent Mixed Regiment arrived there on the night of 24/25 January.A subsequent attempt to ship an infantry and an artillery battalion to the Admiralties was frustrated by Allied air and submarine attacks, but 530 soldiers of the 38th Division's 1st Battalion, 229th Infantry Regiment arrived there on the night of 2 February.Most of these troop movements were detected by Allied intelligence.