Answer:
<u>President Hoover</u> A.K.A <u>Herbert Hoover</u>
Explanation:
Before serving as America's 31st President from 1929 to 1933, Herbert Hoover had achieved international success as a mining engineer and worldwide gratitude as “The Great Humanitarian” who fed war-torn Europe during and after World War I.
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The new technology that allowed the Allies to more effectively bomb the Japanese main land, was the capacity of the B-29. If we look at the other ones, we see that all that stuff already exist before the war.
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Volunteer soldiers. In America, there are no enlisted men, only citizens willing to give up their lives for their country. But during a serious war, there can be soldiers being deployed against their will so that there are more soldiers to help during the war.