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End of War Beginning of Nuclear Age

End of War Beginning of Nuclear Age. Manhattan Project. Manhattan Project. June, 1942: Army Corps of Engineers led by Gen. Leslie Groves was appointed director Experiments were first held beneath University of Chicago’s abandoned Stagg Field (first controlled nuclear reaction took place)

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End of War Beginning of Nuclear Age

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  1. End of WarBeginning of Nuclear Age

  2. Manhattan Project

  3. Manhattan Project • June, 1942: Army Corps of Engineers led by Gen. Leslie Groves was appointed director • Experiments were first held beneath University of Chicago’s abandoned Stagg Field (first controlled nuclear reaction took place) • J. Robert Oppenheimer (theoretical physicist) directed Los Alamos research in New Mexico • This was the most ambitious secret enterprise in history • More than 600,000 Americans were involved • Truman did not find out about it until he became president

  4. Truman and the Bomb • Truman decides to use the Bomb because • Invading Japan would mean up to 1,000,000 more casualties • Anti-Japanese sentiment is strong in the U.S. • August 6, 1945 Enola Gay drops uranium bomb on Hiroshima • August 9, 1945 Plutonium bomb dropped on Nagasaki • Why these cities? • Were never hit by allied bombing

  5. Hiroshima and NagasakiAugust 6, 1945August 9, 1945 • President Truman’s decision • Thought it would end the war and save American lives • Hiroshima: 66,000-78,000 killed • Nagasaki: 39,000 killed • Japan estimates 240,000 total

  6. Japan Surrenders (V-J Day) Japan surrendered on August 14, 1945 Formal signing took place on September 2nd aboard the Missouri

  7. Nuremburg 1945-46 11 high Nazis executed Others put in prison Tokyo 1946-48 7 Japanese leaders hanged Premier Tojo hanged War Crimes Trials Individuals held responsible for violating international law

  8. Trial at Nuremburg

  9. May 8, 1945 V-J Day V-E Day August 14, 1945

  10. MacArthur & U.S. forces occupy Japan • Japan’s economy is reshaped – free market practices • Japan had a new constitution (MacArthur Constitution) • Established women’s suffrage • Guaranteed basic freedoms

  11. Memorable World War Two Images

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