Nuclear Weapon

A nuclear weapon is a weapon which derives its destructive force from nuclear reactions of fission or fusion. As a result, even a nuclear weapon with a small yield is significantly more powerful than the largest conventional explosives, and a single weapon is capable of destroying an entire city.

In the history of warfare, nuclear weapons have been used only twice, both during the closing days of World War II. The first event occurred on the morning of 6 August 1945, when the United Statesuranium gun-type device code-named "Little Boy" on the Japanese city of Hiroshima. The second event occurred three days later when, again, the United States dropped a plutoniumFat Man" on the city of Nagasaki. The use of these weapons, which resulted in the immediate deaths of around 120,000 people and even more over time, was and remains controversial. dropped a implosion-type device code-named "