The relics are grim remnants of the vast tunnel network dug by the Imperial Japanese Army under Shuri-jo castle before the fierce Battle of Okinawa in 1945. Previously closed-off parts of the ...

Part of a tunnel network under Shuri-jo castle in Naha that was used by the Imperial Japanese Army as a headquarters during the 1945 Battle of Okinawa is shown to media representatives. (Pool) ...