British Lieutenant Colonel John Bradstreet led an army of over 3,000 men, of whom about 150 were regulars and the remainder were provincial militia. The army besieged the 110 people inside the fort and won their surrender two days later, cutting one of the two major communication and supply lines between the major eastern centres of Montreal and Quebec City and France's western territories (the northern route, along the Ottawa River, remained open throughout the war). The British captured goods worth 800,000 livres from the trading post.