Unwitting biological warfare helps too. Conquest is a whole lot easier when something that gives your people the sniffles more than decimates your enemies. Bu

Unwitting biological warfare helps too. Conquest is a whole lot easier when something that gives your people the sniffles more than decimates your enemies. But yeah, the Aztecs and the Incas didn't become great empires by sitting around the campfire and singing kumbaya. Which is part of the reason Cortez and Pizarro were able to beat them with such small armies of Spaniards... backed up by tens of thousands of native allies.