 In September 1941, Shimazaki was assigned as equipping officer of the new carrier , responsible for forming its new air wing, with himself becoming its commander when the ship was ready for duty.Shimazaki is best known as the leader of the second wave of the air attack on Pearl Harbor on 7 December 1941.He was piloting a Nakajima B5N2 "Kate" and led the attack group of 54 high-level bombers and 78 dive bombers.