Alien Invasion

An Alien Invasion is an invasion from from an alien race from outer space. It shouldn't be confused with a simple visit from aliens, who may come in peace...but rather an alien invasion refers to an alien race who wishes to take over the world, and possibly even kill all life or intelligent life on the planet.

Earth has faced Alien Invasions on several occasions, some of which have tried to take over the earth more than once. King Plasto once used a FRERP flying saucer to scare the citizens of Gotham City into thinking there was an Alien Invasion.