The Incans and the Incan Guns

Diamond: The spaniards had better weapons than the inca. He asks why they didn't use their steel, germs and horses to defeat them. Diamond: Lots of things went wrong for the inca when the spaniards showed up. They were politically divided; a mallpox epidemic had already spread among south american natives after being introduced by spanish settlers in panama and columbia. So its clear, in that particular fight, why the sp Spanish won. But that doesn't answer diamond's question.