User talk:CaptainTybusen/Length of Human Survival/@comment-47205-20101116163343

Imperial ships' antimatter weapons could each turn an area about the size of Europe into a crater. Assuming that didn't cause the collapse of the entire biosphere, the collapse of Human civilisation, or even just the unconditional surrender of all remaining countries, a typical fleet could bomb the entire planet into submission in a matter of minutes.

The Tokzhalan Empire could use "bolide"-type antimatter projectiles, but they're probably enough to break the "no weapons that destroy large sections of the planet" rule. Instead, they could just use the Staff of Death or modified Staff of Life to destroy all of Earth's native life within a few minutes. Using the Staff of Life again (this could also work after an antimatter bombardment) would then render the planet inhabitable for Imperial colonisation, and the entire process would take significantly less than an hour.

Earth's weapons would have practically no effect on the attack fleet, and all but the nuclear weapons would be almost completely worthless even if they weren't using shield deflectors. No, not even Justin Bieber would cause any noticable damage.