The headquarters of the IJA 91st Infantry Division, responsible for defense of the northern Kurils, was established at Kashiwabara, and numerous coastal artillery positions and fortified bunkers were constructed in various locations around the island.
A base da IJA 91º División de Infantería, responsable da defensa das Kuriles do Norte, estableceuse en Kashiwabara, e construíronse numerosas posicións da artillería costeira e bunkers fortificados en varios lugares ao redor da illa.