Krolp/Bio & Battles

"They weren’t invulnerable. Humans could kill them. Unless somebody got amazingly lucky, the usual cost was about two armored divisions and all their matériel for one Krolp."

- Harry Turtledove, Vilcabamba The Krolp are a race of "centauroid" aliens appearing Harry Turtledove's short story "Vilcabamba". The Krolp are larger than a horse, with gray skin and heads similar in appearance to a jack-o-lantern and mouths lined with a sharp edge, but no true teeth, and large, glowing, cat-like eyes. The Krolp also have been described by humans as smelling like Limburger cheese.

The Krolp invaded Earth in the 22nd century, and quickly overwhelmed humanity's defense, easily shooting down or disarming the nuclear weapons used against their initial invasion forces. The US and Canada joined together to fight the Krolp, but their efforts were for not. The Krolp were not invincible, but it took large amounts of human resource to kill just one of them, to the point that two division of men and materiel were lost for every Krolp soldier killed. The Krolp quickly took control of most of Earth.