Hirohito was Japan’s emperor during the 1945 surrender announcement and formal surrender.
Hirohito, posthumously known in Japan by his reign name Emperor Shōwa, recorded the surrender message that was broadcast on August 15, 1945. This was the first known time ordinary Japanese people heard their emperor’s voice. He used highly formal classical Japanese and did not state the word “surrender” in a simple, direct sentence, so some listeners were uncertain about the announcement’s meaning.
The emperor’s intervention came after Japan’s leadership debated whether to accept the Potsdam Declaration. The atomic bombings, the Soviet entry into the war, and the worsening military situation intensified the crisis. Hirohito supported acceptance, helping break a deadlock among the ruling council.
He remained emperor after the war but renounced the claim that he was divine. Under the postwar constitution, which took effect in 1947, the emperor became a symbol of the state rather than a sovereign ruler with political power.