Events leading up to Battle of Iwo Jima By keianndrac Jul 4, 1944 Iwo Jima is first Bombarded U.S. Navy task force bombards the Volcano and Bonin Islands, including Iwo Jima Dec 8, 1944 74 days of straight bombing Beginning of 74 straight days of aerial bombings of islands in the Volcano and Bonin Islands, including Iwo Jima