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Commemorative plaque of the Sullivan Expedition.
The 1779 Sullivan Expedition, also known as the Sullivan-Clinton Expedition, or Sullivan Campaign was an extended systematic military campaign during the American Revolutionary War against Loyalists `Tories` and the four Nations of the Haudenosaunee which had sided with the British.
The campaign ordered and organized by George Washington and his staff was conducted chiefly in the lands of the Iroquois Confederacy also known as the Longhouse Confederacy `taking the war home to the enemy to break their morale`, and the expedition was largely successful in that goal as they destroyed more than 40 Iroquois villages and stores of winter crops, breaking the power of the six nations in New York all the way to the Great Lakes, as the terrified Indian families relocated to Canada seeking protection of the British.