In 1790, Harmar was sent on expeditions against Native Americans and remaining British in the Northwest Territory. After a few initial military successes, his force of Federal troops was defeated by a tribal coalition led by Little Turtle, in an engagement known as the "Harmar's defeat", "Battle of the Maumee", Battle of Kekionga", or "Battle of the Miami Towns". Later, Harmar returned with a somewhat larger force and engaged the coalition, but fought to a draw. Consequently he was relieved of this command and replaced by General Arthur St. Clair. Harmar was subsequently court-martialed, at his own request, on various charges of negligence, and exonerated by a court of inquiry."
Oct 1790 - Harmers Defeat.
Nov 1791 - St. Clairs Defeat.