Immediately after that, when Sino-Japanese War broke out starting with military intervention to Donghak-to disturbance occurred in the Korean Peninsula, ITO transferred the Imperial headquarters and Imperial Diet to Hiroshima City to establish the wartime regime and led Japan to victory and concluded Treaty of Shimonoseki with Qing.
その直後に朝鮮半島で起きた起きた東学党の乱への軍事介入を機に日清戦争が始まると、広島市に大本営と帝国議会を移して戦時体制を確立し、日本を勝利に導いて清国と下関条約を締結した。