The Battle of Stillman's Run, also known as the Battle of Sycamore Creek or the Battle of Old Man's Creek, occurred on May 14, 1832. The battle was named for Major Isaiah Stillman and his detachment of 275 Illinois militia which fled in a panic from a smaller number of Sauk warriors. The engagement was the first battle of the 1832 Black Hawk War which had ignited after Black Hawk crossed the Mississippi River into Illinois with his "British Band" of Sauk and Fox. The militia pursued a group of Sauk scouts back to the main British Band camp following a failed attempt at truce negotiations by emissaries sent by Black Hawk.