Because America dropped a nuclear bomb on them
During the second world war the Americans bombed both Hiroshima and Nagasaki.
Twenty one airmen died there. They were war captives.
For who? The germans, jews, americans, japanese?
No ,Hiroshima was bombed in 1945,during the World War II.
Pearl Harbor was attacked by the Japanese which initiated US involvement in World War 2. Hiroshima was the first nuclear bombing of a Japanese city by the US in an effort to stop the war. 2,403 Americans died at Pearl but nearly 75,000 wee killed at Hiroshima.
Most people were glad the war was over.
Bombing Hiroshima and Nagasaki were the last action take in World War 2.
To end the war and collapse Japan's means to make war.
the war ended in japan because of the atomic bomb (dropped on hiroshima and nagasaki) the war ended in germany because of the capture of berlin by the red army and the americans.
They dropped them by bomber planes over Hiroshima and Nagasaki.
See related question below. The bombing of Hiroshima was to end the war. It was not about freedom for Americans. If Japan took over America or the Germans had done that the Americans would not have freedom.
The US dropped an atomic bomb on Hiroshima to end the war.