Japan was the cause for the United States to get involved with the war in the first place. Senator Richard Russel said to Harry Truman, “The foul attack on Pearl Harbor brought us into war and I am unable to see any valid reason why we should be so much more considerate and lenient in dealing with Japan than with Germany.” Truman also expressed, “The only language they seem to understand is the one we have been using to bombard them. When you have to deal with a beast you have to treat him as a beast.” Peace was an unfavorable way to settle the finale of the war. The atomic bomb also gave the United States a reason for other countries, such as Russia, to think twice if they ever intended to start new conflict, for they could receive the same retribution like Japan had. (Unfortunately, it didn’t seem to be that effective, for the Cold War arose several years later.) The Manhattan project had costed $1,889,604,000 at the time. It made more sense to put the hard work into actual use, rather than to leave it as a test that would have been aimless if not ever applied at all. These efforts weren’t mandatory, but they were definitely beneficial for the U.S.’s…