The Continentals retaliated and in 1779 , George Washington ordered the Sullivan Campaign , led by Col. Daniel Brodhead and General John Sullivan , against the Iroquois nations to `` not merely overrun , but destroy '' , the British-Indian alliance .
In 1779 , George Washington ordered the Sullivan Campaign led by Col. Daniel Brodhead and General John Sullivan against the Iroquois nations to `` not merely overrun , but destroy , '' the British-Indian alliance .