extreme US casualties
Harry S. Truman
Harry Truman drop the Atomic Bomb on Hiroshima, Japan and Nagasaki, Japan.
President Truman wanted to keep the government expenditure in check bearing in mind that the US was fighting Japan.
Truman wanted to avoid invasion of Japan because he knew that there would be massive Japanese civilian loss. The Japanese philosophy was that it was treasonous to be captured and that it was a religious sin for non-Japanese to be allowed to invade their country.
President Harry Truman because he (mainly) wanted to avoid having to spend millions of troops in an invasion of Japan to get them to surrender. He also just wanted to show the world that we were the best and we intended to make it stay that way and at a forced peace.
U.S. president? That was Truman.
It was not difficult for Truman. He wanted to end the war and collapse Japan's means to make war.
From Japan, Truman demanded unconditional surrender. From Stalin, Truman demanded free elections throughout Eastern Europe.
yes
what? Can you ask a better question
Truman