Two were dropped on Japan to end WW2.
Uranium-235 and Plutonium-239 are the two primary elements used in nuclear weapons due to their ability to sustain a chain reaction necessary for a nuclear explosion.
No nuclear weapons were used in the korean war
No, the only nuclear weapons ever used in combat were the two used in 1945 on Japan to end WW2.
None. No nuclear weapons were used in Viet Nam.
While many countries have exploded test weapons, only the United States has ever used Nuclear weapons against an adversary. Two bombs were dropped on two cities in Japan Hiroshima and Nagasaki in 1945, to bring WWII to an end.
Some of the countries have nuclear weapons because they use them as a defense mechanism. The nuclear weapons are intended to be used whenever there is a war.
the u.s. used non nuclear weapons and nuclear weapons against japan
No nuclear weapons have been used in Afghanistan to date.
The threat that nuclear weapons would be used.
Only in nuclear weapons
The only country to ever use nuclear weapons in war is the United States with the two bombs they dropped on Japan. No other country has ever actually used a nuclear weapon.