The difference is its not easy to turn a nuclear plant 'off', quickly, and even then it still needs power to keep the spent fuel cool. If the plant loses backu

The difference is its not easy to turn a nuclear plant 'off', quickly, and even then it still needs power to keep the spent fuel cool. If the plant loses backup power (which is finite) then you'll get a disaster with the spent fuel pool boiling off and the fuel itself igniting spreading radioactive ash for miles. The point is it's very dangerous to have a nuclear power plant in the middle of a warzone.