In early July 1758, British General James Abercromby with a force of over 15,000 attacked General Louis-Joseph de Montcalm and his garrison of 3,500 French and Canadian troops at Fort Carillon, which overlooked Lake Champlain. The British had 44 cannons, the heaviest weighing more than 5,000 pounds. The fort was later called Ticonderoga by the British, and it controlled access to French Canada. Abercromby's force included 5,825 red-coated British regulars, including the Royal Highlanders. He had 9,000 colonial soldiers from Massachusetts, Connecticut, New York, Rhode Island, New Hampshire, and New Jersey. Some 400 Mohawk warriors joined in. Abercromby's attack became disorganized and he suffered the worst British defeat of the war, with over 2,000 killed. He retreated and the campaign ended in failure.