He also led Japan's early forays into the South Pacific and Indian Oceans, but his force was defeated on 4 June 1942, when during the [[Battle of Midway]], he lost all four carriers in his battle-fleet. | He also led Japan's early forays into the South Pacific and Indian Oceans, but his force was defeated on 4 June 1942, when during the [[Battle of Midway]], he lost all four carriers in his battle-fleet. |