It is comparable to 20 billion dollars in today 's money. Although many people think that the project was too expensive and unnecessary, it had to happen to help begin the nuclear age. If we did not start the Manhattan Project, other countries would have and we would be behind. The war would have ended a different way and could have costed many more lives. Throughout the course of the Manhattan Project, three bombs were dropped. This was the first time in history that a country has dropped an atomic bomb over another country. Many people think, why would the United States do this? According to ushistory.org, the United States was planning on doing an invasion of Japan at the end of the war. This invasion was called "Operation Downfall", which used conventional bombing such as fire bombing. They calculated over one million U.S. casualties. President Truman states his decision was purely military and he believed it saved Japanese …show more content…
On August 9, 1945, a second bomb was dropped over the Japanese city of Nagasaki. This plutonium bomb, called "Fat Man", was more powerful than Little Boy. Nagasaki is located in between mountains so it reduced the bomb 's effects. It destroyed two point six miles of the city and forty thousand civilians were killed instantly. There were no buildings left and food was scarce. Over one hundred thousand people would die from radiation over the months and years after the bombing, Why would the United States drop a second bomb over Japan? Didn 't the first one cause enough damage? Some critics say that the decision to drop the bombs brought negative, long term consequences to the United States. The dropping of the bomb also started a new age of nuclear weapons. After dropping the bomb, the American government was accused of racism and was stated that "the bomb never would have been used if it was white people". The atomic bomb had to be done. The bombing brought a quick end to the bloodiest war in history. It saved more lives than it had