Why did the U.S. drop the atomic bomb on japan in 1945
On August 9, a second atomic bomb was dropped on Nagasaki, where 80,000 Japanese people perished. On August 14, 1945, the Japanese surrendered. Critics have charged that Truman's decision was a barbaric act that brought negative long-term consequences to the United States. mushroom cloud rises over the city of Nagasaki on August 9, 1945, following the detonation of Fat Man.. The second atomic weapon used against Japan, this single bomb resulted in the deaths of 80,000 Japanese citizens.