For most military planners the atomic bomb (and later the hydrogen bomb) was just a more powerful version of existing bombs. It therefore had practically no impact on their ideas of how wars would be fought. Some however decided that only bombers would be needed to destroy any adversary, the rest of the military could be eliminated to save money.
However with the beginning of the Korean War it began to be realized that some wars might be "too small" to make the atomic bomb appropriate to use.
Most of the world agree that nuclear bombs should not be used. The problem is that having nuclear weapons is good to some people because they need weapons to end wars rapidly.
It ended World War 2.
we were feared of due to the technology of the atom bomb.
Your Mom perfected the atom bomb.
Atom bomb
No one made an atom bomb in World war 1. It took to the very end of World war 2 for the Atomic bomb to be invented. Exactly who invented is is a bit tricky. There were several different scientists that had come up with the idea separately. But the man mostly associated with turning it into a working weapon is Dr Robert Oppenheimer.
The Atom bomb.
Hydrogen bomb
The bomb was used to end the war and collapse Japans means to make war never again.
It was hit because of World War and the Pacific War.
Yes, it ended the war.
Hiroshima
it was dropped in Japan