sentences:  While securing areas westward of the airfield strip, the 163d Infantry Regiment did not encounter much resistance, only suffering two casualties, one man wounded and another missing.The second echelon of Allied troops arrived on 23 April, with the 127th Infantry Regiment arriving from the 32nd Infantry Division.The following day on 24 April, infantry and tanks proceeded further west, crossed the Raihu river without much resistance, reaching Aitap town and Rohm Point, which had been hastily abandoned by their Japanese defenders.