The mission of such teams was to destroy obstacles on landing beaches, and APD's such as Barber delivered these teams to the areas four or five days before the actual invasion. Just two days after receiving word of President Franklin D. Roosevelt's 12 April death, she sailed via Eniwetok for Ulithi.
Teams tasked with destroying obstacles on landing beaches were deployed by APDs like Barber, arriving at their designated locations four to five days before the invasion. Following the announcement of President Roosevelt's passing on April 12th, Barber departed from Eniwetok and headed for Ulithi two days later.