I'll offer up "The Battle of the Cowpens" in the American Revolution. American General Nathaniel Greene, being pursued by a vastly superior British force lead by Lord Cornwallis, goes against conventional wisdom and splits his army in two, with the other half given to the command of General Daniel Morgan. The idea was to try and split Cornwallis' army in two as well in order to avoid an all out confrontation. Greene is pursued north by Cornwallis while Morgan is pursued by notorious British Cavalry office Banastre Tarleton.
Morgan then decides to make a stand at a place called The Cowpens in South Carolina, backed up against a river so that his men would have to stand and fight. Saddled with a high number of inexperienced infantrymen, Morgan knows they will panic when the British cavalry charges. He comes up with a brilliant plan (ala Hannibal at Cannae) and puts these inexperienced troops front and center of his line, in front of two full lines of experienced militia types, and tells them after they fire their 2 shots that it is okay to turn and withdraw to the rear. Greene correctly banks on Tarleton's aggressive tendencies and sure enough Tarleton charges straight for the center line upon arriving at The Cowpens. After watching the Americans fire their two volleys and turning to withdraw to the rear, Tarleton incorrectly believes he has them in a panic retreat and heads straight into the brunt of two full lines of colonials who annihilate his forces in a double envelopment. A devastating defeat for the British.
Morgan then proceeds back after Cornwallis, who has been desperately trying to catch up to Greene's forces. The hunter then becomes the hunted and Cornwallis is forced to head to Virginia and holes himself up at a little place called ... Yorktown.
And the rest as they say ... is history.