Ships
- IJN Nojima Maru Captain from 20 September 1941
Koichi Itagaki served in the Imperial Japanese Navy and held the rank of captain by the time Japan entered the Pacific War. The assignment that places him in the wartime record is command of the transport Nojima Maru, which he took on 20 September 1941, a little more than two months before the attack on Pearl Harbor.
The Nojima Maru was a merchant ship brought into naval service as an auxiliary transport. In that role she carried troops and supplies rather than fighting as a combatant in her own right. Captains of such ships were responsible for getting men and cargo to their destinations under wartime routing, often in convoy and often within range of submarines and aircraft.
Itagaki’s date of taking command falls in the final phase of Japan’s preparations for a wider war. Through the autumn of 1941 the Navy was assembling the shipping that would move invasion forces and keep them supplied across the western Pacific and Southeast Asia. A captain ordered to an auxiliary at that moment was entering the logistics effort on which those operations depended.
Public accounts do not develop a longer personal narrative for Itagaki beyond this command. What the record does fix is his rank, his navy, and the ship he was given in September 1941. In that capacity he stood with the many transport captains whose work, though less visible than that of the fleet’s fighting ships, kept the Imperial Navy’s campaigns moving.