Postcard image of the Monument to <PERSON> at the Guilford Battleground in Greensboro, N.C. The Battle of Guilford Courthouse was fought on March 15, 1781. And although the Patriots lead by <PERSON> lost the battle, the British army under <PERSON> lost substantial troops, paving the way for <PERSON>'s surrender at Yorktown later that year and ending the Revolutionary War.