Harry Truman felt that it was necessary to successfully end the War.
Rockets and atomic bombs.
Atomic bomb
Atomic weapons impact the balance of military power in the world today in the sense that produce a sense of fear in the countries that have weak militaries.
The use of atomic weapons brought it to an end..........
Atomic weapons negate declarations of war.
Answer by an editor: No one wants to use an atomic weapon, particularly the nuclear missiles we have now in the world. The weapons of today can destroy 1/3 of the world so they are not fired.
the use of atomic weapons increased quickly ============================A1 Devraj==========================
Really the atomic bombs affected Japan directly but the rest world were fearing that the weapons made to protect them will cause their deaths.
not until Aug 1949
One thing is that since the age of atomic weapons there has not been any more world wars.
Blowing up your enemies is not the way to solve all problems. So atomic weapons really did not need to be used in WWII.