sentences:  Water was limited on Biak and had to be strictly rationed by the US troops, and heat and humidity would take a heavy toll during the fighting.The Allies knew from an intercepted message dated 5 May 1944 that the IJA 2nd Area intelligence thought the next Allied landing would probably be on Biak, and a preliminary landing was made on 17 May at Wakde on the way to Biak.There a smaller airfield was available, which could be used as an advanced base until the Biak strips were ready.