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How did Emperor Hirohito influence Japan’s decision to surrender?

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Atomic bombing of Hiroshima — atomic bombings of Hiroshima and Nagasaki A gigantic mushroom cloud rising above Hiroshima, Japan, on August 6, 1945, after a U.S. aircraft dropped an atomic bomb on the city, immediately killing more than 70,000 people.

Emperor Hirohito played a decisive role in ending World War II by breaking with the tradition of imperial nonintervention in political affairs. Following the atomic bombings of Hiroshima and Nagasaki and the Soviet Union’s declaration of war, Hirohito summoned his cabinet and expressed his desire to accept the terms of the [Potsdam Declaration].12

He argued that continuing the conflict would be suicidal for the nation and criticized military leaders for failing to meet their promises of victory. Although the government initially sought to condition surrender on the preservation of the imperial institution, Hirohito insisted on moving forward once the Allies clarified that the Japanese people’s will would be respected.234

Despite an attempted coup by fanatical officers, the emperor’s personal prestige was sufficient to ensure the surrender process continued. On August 15, 1945, the Japanese public heard his voice for the first time via a radio broadcast announcing the decision to surrender, which ultimately led to the formal signing of documents on September 2, 1945.31