Nuclear weapons are the most powerful weapon made so far. They are very destructive destroying miles around the detonation zone. They have been used in world war 2 in Hiroshima, and Nagasaki Japan and killed thousands of people. These bombs ended world war 2 they work by splitting an atom and causing a massive chain reaction. This is the same reaction nuclear energy plants use. And like Chernobyl its very devastating if used wrong. Nukes are uses in bombs and nuclear warheads. After the cold war world leaders decided to stop testing nukes. There are so many nukes in the world it could cause world extinction if all of the nukes explode
