Mitsubishi G4M "Betty", Rabaul, Admiral Yamamoto Isoroku 三菱 一式陸上攻撃機, ラバウル, 連合艦隊司令長官 山本五十六大将 - video Another video from the NHK collection, dated May 25, 1943, featuring Admiral Yamamoto Isoroku during his visit to the IJNAF base in Rabaul, April 1943 that led to his death ( https://en.wikipedia.org/wiki/Operation_Vengeance or https://ja.wikipedia.org/wiki/海軍甲事件 ). The narator mentions: "In the month of April, we remember the figure of Admiral Yamamoto, who, as Commander-in-Chief of the Combined