On August 6, 1945 the US dropped an atomic bomb ("Little Boy") on Hiroshima in Japan. Three days later a second atomic bomb ("Fat Man") was dropped on the city of Nagasaki. These were the only times nuclear weapons have been used in war.
Reasons for the bombing
Many reasons are given as to why the US administration decided to drop the atomic bomb on Hiroshima and Nagasaki. Reasons include the following: • The United States wanted to force Japan's surrender as quickly as possible to minimize American casualties. • The United States needed to use the atomic bomb before the Soviet Union entered the war against Japan to establish US dominance afterwards • The United States wanted to use the world's first atomic bomb for an actual attack and observe its effect.
Given all of these reasons, the US was in quite a hurry to drop the bomb. Shortly after successfully testing history's first atomic explosion at Trinity, New Mexico, on July 16, 1945, the order to drop the atomic bomb on Japan was issued on July 25.
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The impact of the bombing on Hiroshima
Hiroshima stands on a flat river delta, with few hills to protect sections of the city. The bomb was dropped on the city centre, an area crowded with wooden residential structures and places of business. These factors meant that the death toll and destruction in Hiroshima was particularly high.
The firestorm in Hiroshima ultimately destroyed 13 square kilometres (5 square miles) of the city. Almost 63% of the buildings in Hiroshima were completely destroyed after the bombing and nearly 92% of the structures in the city had been either destroyed or damaged by blast and fire.
Estimates of total deaths in Hiroshima have generally ranged between 100,000 and 180,000, out of a population of 350,000.
The impact of the bombing on Nagasaki
Due to the hilly geography of Nagasaki and the bombing focus being away from the city centre, the excessive damage from the bombing was limited to the Urakami