The men in Ofuna, said the Japanese, weren’t POWs; they were “unarmed combatants” at war against Japan and, as such, didn’t have the rights that international law accorded POWs. In fact, they had no rights at all. If captives “confessed their crimes against Japan,” they’d be treated “as well as regulations permit.” Over the course of the war, some one thousand Allied captives would be hauled into Ofuna, and many would be held there for years.
The plan was simple. The men would leap onto the Bird and pull him to the top floor of the barracks, overlooking the drop to the Hokura River. There, they would lash him to a large rock and shove him out the window. When he struck the water below, the rock would carry him under. He would never draw another breath.
Note: this does not actually sound like a simple plan.