That refers to warfare that includes nucear weapons, also known as atom bombs.
Nuclear waste can not case an explosion is it's spent form. Once a reactor is done with Uranium rods as fuel they are put into lead lined containers and transported to spent fuel storage. A nuclear...
Yes, just look at what happened in hiroshima after U.S nuked it
The only country to have used nuclear warfare in history is the USA
Sudden release (in a few microseconds) of nuclear energy via fission, fusion, or a combination of both.