Operation Downfall was the proposed Allied plan for the invasion of the Japanese home islands near the end of World War II. The planned operation was canceled when Japan surrendered following the atomic bombings of Hiroshima and Nagasaki, the Soviet declaration of war, and the invasion of Manchuria. [1]

2013年11月6日 · Operation Downfall, the codename for the U.S.-led mission to capture the Japanese homeland in 1945 and 1946 never did take place.

2023年8月9日 · Operation Downfall was a planned military operation by the United States and its allies toward the end of the Second World War. The aim was to invade and occupy Japan’s home islands in what would have been one of history’s largest amphibious assaults.

However dismantling the Japanese defence, built on taking one cave at a time, resulted in almost 8,000 American deaths. More than 170,000 US servicemen took part in the island’s capture, it was the most costly operation in the Pacific war.

Operation Downfall, the Allies' audacious plan to end World War II by invading Japan, promised a climax more bloody and dramatic than any battle before. Yet, history books remain eerily silent on its execution.

2015年5月19日 · Operation Downfall was the name given to the planned invasion of Japan. Operation Downfall itself was divided into two parts – Operation Olympic and Operation Coronet.

W orld War II ended with the dropping of “the bomb” on Hiroshima and Nagasaki. This sudden and unan-ticipated conclusion to the conflict was greeted with joy by the entire Nation, not least by the 2.5 million Americans slated to invade Japan’s Home Islands including Tokyo it-self.

Operation Downfall was the overall Allied plan for the invasion of Japan near the end of World War II. The operation was canceled when Japan surrendered following the atomic bombings of Hiroshima and Nagasaki, and the Soviet Union 's declaration of war against Japan.

Operation Downfall was the proposed Allied plan for the invasion of the Japanese home islands near the end of World War II.

Downfall would eventually involve 4.5 million fighting men, every vessel in the U.S. Pacific Fleet, and thousands of landing craft, support ships, vehicles, and planes. It was significantly larger than the D-day invasion of France’s Normandy coast on June 6, 1944.