As a Villain, Press the Death Switch

More than a thousand years ago, everyone hated war and feared the end of the world, so they had the "peace dove". Once a war breaks out, the "Peace Dove" will bring about the end of the world, causing plagues, floods, earthquakes and other catastrophes, destroying the whole world in one fell swoop, and killing all human beings indiscriminately. Use fear to contain fear, use power to contain power. The existence of the "Peace Dove" was originally meant to nip war in the cradle and give people eternal peace. However, the people who installed the "Peace Dove" probably never imagined that more than a thousand years later, how happy would life be? The world sucks...