During the mid-17th century, the Susquehannock found that the English fur traders would trade European firearms in exchange for beaver skins. Due to the trade deals that the Susquehannock were getting from the English fur traders, the Haudenosaunee began warring against other Nations in the region in order to monopolize the richest fur-bearing streams. When the Haudenosaunee attempted to impose their will upon the Susquehannock circa 1666, the Susquehannock achieved a great victory against the combined forces of the Seneca and Cayuga nations, severely damaging the southern populations of both these western Iroquois nations.
