The quote below was taken from a speech given on August 29, 1945, to engineers on the Manhattan Project by the military commander in charge of the project.

"The only thing that we have to think about is that the war is over and that a great many of [sic] Americans are going to be safe and in good hands who wouldn't have been if it hadn't been for the Manhattan District."
—General Leslie Grove

Why would Groves have told the engineers "the only thing we have to think about is that the war is over"?

A. The decision to use atomic weapons was opposed by some who felt it was immoral.
B. The decision to use atomic weapons was not supported by most Americans.
C. The decision to use atomic weapons prolonged the war against Japan.
D. The decision to use atomic weapons allowed German scientists to develop similar weapons.

In the context of General Leslie Groves' statement to the engineers on the Manhattan Project, the reason he emphasized that 'the only thing we have to think about is that the war is over' is closely tied to the decision to use atomic weapons. The key factor behind this statement was the belief that deploying atomic bombs was essential to swiftly end the war and avoid the projected high casualties that a traditional invasion of Japan would entail. By highlighting the end of the war as the paramount consideration, General Groves was underscoring the perceived necessity and urgency of using the atomic bombs to bring about a rapid conclusion to the conflict with Japan.

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