If you mean used it in an act of warfare, as opposed to a test, the only country to do so has been the USA (Hiroshima and Nagasaki, 1945)
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.
canada
United States.
August 6, 1945 on Hiroshima Japan by the US.
fatman, little boy and trinity they are nuclear bombs used on japan (exept trinity) at the end of the second world war.
August 6, 1945
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.
Iran
iraq
canada
The country that did not sign the Central Asian-Nuclear-weapon- free-zone treaty is Afghanistan.
United States.
August 6, 1945 on Hiroshima Japan by the US.
The meaning of the word nuclear weapon, is a weapon that has a nuclear warhead on it.
The actual answer may surprise even you: ID 1667019371. If Iran ever used a nuclear weapon on any country, let alone Israel, Iran would be destroyed.
fatman, little boy and trinity they are nuclear bombs used on japan (exept trinity) at the end of the second world war.
Number of nuclear weapons by country: Country # of nuclear weapons USA 10'300 Russia 16'000 China 410 France 350