American missions against Ollan Island
February 17–April 30, 1944

February 17, 1944
(USN) SB2C Helldivers from VB-10 aboard USS Enterprise photographed Ollan Island barracks and pier.

April 29, 1944
(USN) Strike 2E: F6F Hellcats from VF-24 on USS Belleau Wood strafe Ollan.
(USN) Strike 2D: F6F Hellcats from VF-24 on USS Belleau Wood strafed gun positions on Ollan, results not observed.
(USN) Strike 2: TBF Avengers from USS Monterey CLV-26 sink a picket boat east of Ollan.

April 30, 1944
(USN) Photo-recon aircaft from USS Bataan taken of Ollan including a clearing with possible gun emplacements.
(USN) Strike 1-A: Four F6F Hellcats from USS Lexington strafe Ollan, damage was not observed.