World War III

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World War III is the name given to a possible third world war. This means that World War III has not yet happened, and might not ever happen.

Most people agree that if this war ever happens, the usage of nuclear weapons (weapons that get their energy from breaking or joining atoms), biological weapons (weapons that are living things, usually bacteria or viruses that humans use as weapons), chemical weapons (weapons that might not kill quickly, but poison people or their land), and conventional weapons (weapons like guns that shoot a piece of metal or explode like TNT or dynamite), would cause massive devastation (destroy much of the Earth and kill lots of living things), and maybe the destruction of humanity (kill all humans). Albert Einstein said, on the destruction that such a war would cause, "I know not with what weapons World War III will be fought, but World War IV will be fought with sticks and stones."

A third world war does occur in the backstory of Star Trek, before the Enterprise goes into space.

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