Taking a Look at Dropping the H-Bomb on Hiroshima and Nagasaki

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background
Before the bombing of Hiroshima, the United States of America had already mad plans to invade Japan with several operations in the process. While the war in Europe ended on May 8,1945 when Nazi-Germany signed the "Instrument of surrender", the Pacific war continued. For many months, the U.S. had dropped as many as 63 million leaflets, intending to warn civilians of an air raid. USA called for surrender from the Japanese armed forces on July 26, 1945 with threats of "prompt and utter destruction."

Pacific War Situation around August 1, 1945.
"Instrument of surrender"
Leaflets that were dropped in Japan
"manhattan project"
The Manhattan Project was led by the United States with support from the United Kingdom and Canada. It was a development and research program that made the first atomic bombs during World War 2. There was more than 30 sites across the U.S, the UK and Canada devoted to research and production. Over 1,000 scientists contributed to the project. The project also gathered intelligence on German nuclear weapons and energy project. Many of the labor force served in Europe, occasionally behind enemy lines, and gathered nuclear materials, documents and even gathered up German scientists. The personnel at the project worked experimenting with and developing nuclear weapons. By August of 1945, the Allied Manhattan Project had successfully tested and produced atomic weapons. The very first nuclear device ever to explode was the implosion-type bomb at the
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