America bombed Hiroshima in WWII with the first ever atomic bomb.
No. Japan flew a submarine launched airplane over the state of Oregon and bombed it. That was the one and only time North America was ever bombed by an enemy war plane.
Actually, Hiroshima is in Japan, but yes, it was bombed by America. The two Japanese cities of Hiroshima and Nagasaki were bombed by American atomic bombs, the only two ever used in war (so far). The bombing terrified Japan, and this led the Japanese to stop fighting in World War II.
Japan once bombed Pear Harbor before we entered WWII
No, but Japan has never been able to apologize meaningfully for making it necessary, either.
There have been two nuclear weapons detonated as offensive weapons during war. Both nuclear bombs were dropped by the United States on Japan near the end of World War II. The first nuclear weapon (code named "Little Boy") was detonated on August 6, 1945 over Hiroshima, Japan. The second (code named "Fat Man") was on August 9, 1945 over Nagasaki, Japan. The destruction was so horrific, that the fact of the destruction has served as a deterrent to the use of nuclear weapons ever since.
Prediction is not possible.
No.
They had no choice.
President Truman wanted to end the war and to collapse Japan's means to make war ever again.
What nuclear war? The only nuclear war ever was the two bombs dropped on Japan to end WW2.
During World War 2 they were 'nuked' (bombed with a nuclear bomb) by the American and British forces. These cities are the only cities ever to be a victim of a nuclear attack in a war.