Why did the u.s. bomb hiroshima and nagasaki

Hiroshima

City in Chūgoku, Japan

This article is about the city in Japan. For the prefecture with the same name where this city is located, see Hiroshima Prefecture. For other uses, see Hiroshima (disambiguation).

Designated city in Chūgoku, Japan

Hiroshima (広島市, Hiroshima-shi, , also,[2], [çiɾoɕima]) is the capital of Hiroshima Prefecture in Japan. As of June 1, 2019[update], the city had an estimated population of 1,199,391. The gross domestic product (GDP) in Greater Hiroshima, Hiroshima Urban Employment Area, was US$61.3 billion as of 2010.[3][4]Kazumi Matsui has been the city's mayor since April 2011. The Hiroshima metropolitan area is the second largest urban area in the Chugoku Region of Japan, following the Okayama metropolitan area.

Hiroshima was founded in 1589 as a castle town on the Ōta Riverdelta. Following the Meiji Restoration in 1868, Hiroshima rapidly transformed into a major urban center and industrial hub. In 1889, Hiroshima officially gained city status. The city was a center of militar

The Manhattan Project

Bombing of Hiroshima and Nagasaki

Even before the outbreak of war in 1939, a group of American scientists—many of them refugees from fascist regimes in Europe—became concerned with nuclear weapons research being conducted in Nazi Germany. In 1940, the U.S. government began funding its own atomic weapons development program, which came under the joint responsibility of the Office of Scientific Research and Development and the War Department after the U.S. entry into World War II. The U.S. Army Corps of Engineers was tasked with spearheading the construction of the vast facilities necessary for the top-secret program, codenamed “The Manhattan Project” (for the engineering corps’ Manhattan district).

Over the next several years, the program’s scientists worked on producing the key materials for nuclear fission—uranium-235 and plutonium (Pu-239). They sent them to Los Alamos, New Mexico, where a team led by J. Robert Oppenheimer worked to turn these materials into a workable atomic bomb. Early on the morning of July 16, 1945, the Manhattan Project held its f

Atomic bombings of Hiroshima and Nagasaki

August 1945 attacks in Japan during WWII

Atomic bombings of Hiroshima and Nagasaki

Atomic bomb mushroom clouds over Hiroshima (left) and Nagasaki (right)

TypeNuclear bombing
Location

Hiroshima and Nagasaki, Japan


34°23′41″N132°27′17″E / 34.39472°N 132.45472°E / 34.39472; 132.45472
32°46′25″N129°51′48″E / 32.77361°N 129.86333°E / 32.77361; 129.86333
Date6 and 9 August 1945
Executed by
Casualties
Hiroshima:
  • 90,000–166,000 killed
    • 80,000–156,000 civilians
    • 10,000 soldiers
    • 12 Allied prisoners of war
Nagasaki:
  • 60,000–80,000 killed
    • 60,000–80,000 civilians
    • 150 soldiers
    • 8–13 Allied prisoners of war
Total killed (by end of 1945):

On 6 and 9 August 1945, the United States detonated two atomic bombs over the Japanese cities of Hiroshima and Nagasaki, respectively. The bombings killed between 150,000 and 246,000 people, most of whom were civilians, and they remain the only use of nuclear weapons in an armed conflict. Japan surrendered to

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