The fourth and final French and Indian War, fought between Britain and France over control of North America, that eventually became part of the Seven Years War. The French had colonies in Canada and Lousiana, and were attempting to link them by taking control of the Ohio Valley. This would have encircled the British colonies on the coast, and stopped any expansion on their part. The war begin with conflict between the French in the Ohio Valley and the Virginians, led by George Washington, who was forced to withdraw by the French. The war started well for the French. A British campaign in 1755 led by General Braddock met with disaster, and saw the death of Braddock, while 1756 saw the French led by General de Montcalm captured Fort Oswego and Fort George and 1757 saw the fall of Fort William Henry. The war turned in 1758, first with the capture of Louisburg and then Fort Ticonderoga, followed on 13 September 1759 by the Battle of the Plains of Abraham (Canada), in which General de Montcalm was killed and by the fall of Quebec on 18 September. Finally the French lost Montreal (8 September 1760), ending their interest in Canada, and removing the French threat to the American colonies. The English occupation of Canada was confirmed by the Treaty of Paris (1763).