Conversation so far:
What happened tot he fur trade in the 18th century?
Deerskin trade was at its most profitable in the mid-18th century.
Where did the deer skin come from?
Native Americans continued to negotiate the most lucrative trade deals by forcing England, France, and Spain to compete for their supply of deerskins.

Question: What tactics were used by the Native Americans?
Self-contained rewrite: What tactics were used by the Native Americans against the North American fur trade in the mid-18th century?