The Okinawa Prefectural Peace Memorial Museum is a significant exhibition complex located in the city of Itoman on Okinawa Island, Japan. It is situated near the city of Naha, the prefecture's administrative center. The museum is a major part of a large memorial park established on Mabuni Hill, in the southernmost part of the island. This site holds deep historical significance, as it was here that the fierce military actions concluded in 1945.

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The museum is dedicated to the tragic events of the Battle of Okinawa and serves as a place of remembrance for nearly a quarter of a million people—both military personnel and civilians—who lost their lives. Its primary goal is not only to tell the story of the past but also to help strengthen peace by reminding us of the value of human life and the fragility of peaceful existence.
The museum's exhibits cover various stages of history in detail: the pre-war period in Okinawa, a comprehensive description of the military actions, and the subsequent complex process of the island's recovery. Visitors can examine 3D terrain maps, watch archival video footage, and see authentic wartime relics and other unique exhibits. All of this helps to gain a deeper understanding of the scale of the tragedy and the importance of preserving peace for future generations.