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The Manhattan Project. What was the US plan for ending the Pacific War?. Did Japan commit war crimes during WWII?. YES !. Rape of Nanking (300,000 civilians killed). NO!. YES !. Pearl Harbor (2,300 military killed). Bataan Death March (1,600 POWS die). Developing the A-Bomb.

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The manhattan project
The Manhattan Project

What was the US plan for ending the Pacific War?

Did japan commit war crimes during wwii
Did Japan commit war crimes during WWII?


Rape of Nanking (300,000 civilians killed)



Pearl Harbor (2,300 military killed)

Bataan Death March (1,600 POWS die)

Developing the a bomb
Developing the A-Bomb

  • 1939: Nazis begin to develop an A-Bomb

  • 1940: US learns of this, and begins their own A-Bomb program

  • The program was called “The Manhattan Project”

  • It was led by General Leslie R. Groves & physicist J. Robert Oppenheimer

  • Their work was conducted at the Los Alamos National Laboratory, New Mexico

  • The new weapon could release more energy than 20,000 tons of TNT

  • New US Pres. Harry Truman would have to decide if the US should use this weapon on Japan, or invade Japan

  • Four bombs were developed at a cost of about $5 billion a piece

  • The first bomb called Gadget was tested in a controlled explosion in New Mexico desert

Trinity Test

The manhattan project

The second bomb was named “Little Boy”

  • On August 6, 1945, a plane named the Enola Gay dropped “Little Boy” on the city of Hiroshima, Japan

  • Japan doesn’t surrender. Aug. 9, 1945, a plane named Bockscar dropped the third bomb named “Fat Man” on Nagasaki, Japan

  • Japan surrenders on August 13th, 1945

The manhattan project

My older aunt, my dah ahiee (big aunt), is actually very small. Her wrists are the size of napkin rings, as delicate as rice paper--and the clothes we pass around in our family do not fit her small frame. She is shy, especially in English. And during one heated family discussion on the American bombings of Hiroshima and Nagasaki in a San Francisco-area Sizzler, she kept quiet. I had pointed out to her rather talkative husband that the U.S. government was still the only government that had dropped the atomic bomb on human beings. Hiroshima, I could maybe see, but Nagasaki too? At this point, my petite aunt spoke up. "I think they should have bombed the whole country!" she bellowed, and then lapsed back into silence.

It was the first time I realized how profoundly the Chinese were affected by World War II. Even then, I was not familiar with what had happened in the country of my mother's birth during the war.

As Americans, we are almost all familiar with the Nazi-sponsored Holocaust, which spread its dark wings across the face of Europe during World War II, spawning unspeakable horrors, starvation and genocide. We know six million Jewish people were killed in the Nazi death machine--along with almost as many gypsies, Poles, gays, communists and resistors. Even as Allied troops marched in victory to the gates of the death camps, the Germans continued to commit war crimes. Many will never forgive the Nazis. But now I see how the Chinese feel about their Holocaust. The lesson of a Holocaust is to never forget. (From Iris Chang’s The Rape of Nanking)

Pros cons of dropping the atomic bomb



Pros & Cons of dropping the Atomic Bomb

Pros cons of dropping the atomic bomb1



Pros & Cons of dropping the Atomic Bomb