Throughout the war, there were times when air units were assigned to aid ground troops as they landed in Japanese-occupied territory. Even though the 63rd and 868th Bomb Squadrons flew specialized B-24s designed for night shipping strikes, on May 27, 1944, they were called upon to hit Biak Island in advance of the Allied invasion. The preliminary strike was carried out at 10,000 feet in the pre-dawn hours. Aircrews had to be precise about their bombings. To keep the ground troops safe, aircrews had to obey several restrictions, such as: staying at high altitudes to minimize the chance of friendly fire accidents, no bombing reefs since it could send coral shrapnel into the ships and no bombing jetties that could be used by the Navy for beach landings.
Once the sun rose, more than 140 B-24s and B-25s were in the air and most of the 41st Infantry Division was assigned to move in on the ground. The 43rd’s B-24s bombed Mokmer Airdrome and the Roeber Area, located south of Borokoe Airdrome. Crews were pleased with the accuracy of their drops. Far below and out of harm’s way, the first wave of Task Force Hurricane was dealing with an unanticipated setback: a westerly current that pushed the transports 3000 yards away from the correct landing beach. Watching the scene unfold, the rest of the crews on the landing craft were able to compensate for the current and landed on the right beach.
By nightfall, all 12,000 Allied troops were on Biak. While they were met with some resistance, there was so little action that the Allies thought that the bulk of the 4000 Japanese troops had already evacuated from the island. That assumption, as well as the troop estimates provided by intelligence, turned out to be wrong. Colonel Naoyuki Kuzume, in charge of the 11,000 troops on Biak, had spread out his troops in strategic locations along ridges and terraces outside of Mokmer Airdrome and the “Ibdi Pocket,” located between Ibdi and the Parai Defile. In these spots, the Japanese put up a fierce fight against the 41st, keeping them out of Mokmer Airdrome until June 8th. It would take even longer for American engineers to safely repair the bombed airfield, as Japanese troops kept shooting at them from higher elevations around Mokmer. The fighting continued into mid-August, delaying any further invasion plans. As word of Col. Kuzume’s successful tactics to ward off Allied troops spread, other Japanese garrisons would adopt similar strategies in the coming months.
Read more about this mission in Ken’s Men Against the Empire, Volume II.