The 141st NCB was stationed at Hilo, Hawaii. It earned battle stars for service in Luzon, Leyte, Saipan, and Tinian. Bently made four major amphibious landings during the war. In June, 1945, all of the Battalion's units but Bently's company were detached for service on Samar island in the Philippines. His company of 224 men was instead ordered to Kwajalein Atoll, Marshall Islands, where it arrived on May 24. The unit (known as ACORN: for Aviation, Construction, Ordnance, Repair) constructed a major aviation facility on Kwajalein Atoll. The facilities were later used as a command center to prepare for Operation Crossroads. In his free time, Bently began taking extension courses from the University of Iowa. His officer told him not to bother: "You'll probably be dead within the year anyway." The unit was preparing for the invasion of Japan when the Japanese surrendered on August 15, 1945. The 141st NCB was inactivated on January 2, 1946.