Clarke led his men across what is now Illinois, 180 miles. Vincennes was entered in two divisions- one by Clarke himself, and the second by American general Bowman. An illusion was created so that it appeared 1,000 men were approaching. Building a trench, he fired at a fort, and commanded an unconditional surrender within 30 minutes. After a skirmish by French and Native Americans, Clarke's most controversial battle, the terms of surrender were accepted by the British.