Sullivan’s 1779 campaign against the Iroquois was a result of almost two years of war in the Mohawk Valley. And the Defeat of St. Leger was largely due to the loss of a large force of Iroquois after the Battle of Oriskany [where the Oneida and Tuscarora fought for us].
My point is these movies hardly spend any time really looking at the war; much less the part of regular enlisted men.