Read Starship Troopers by Robert A. Heinlein. Humanity has some uber-tech in that book that they use on alien species with extreme violence. Hell, even in the movie, which was god awful, except for the propoganda pieces and the co-ed shower, the alien tech came from giant bugs that farted plasma up into the stratosphere.
Responses:
Robert A. Heinlein
Did you know that in an early draft of the script, I was to have a cameo appearance in that very same shower scene?
Robert A. Heinlein
Until the producers found out I was already dead.
Robert A. Heinlein
Not that I would have minded, at this point I'll take anything I can get.