Here is a wonderful article on the French and Indian war.
In 1759 thirty-two year English General James Wolfe successfully defeated the French General Montcalm. Quebec, France’s chief city in Canada was taken, radically altering the balance of power in North America. With the Seven Year’s war raging in Europe (known as the French and Indian war in the American colonies) and British command of the oceans, French possessions were vulnerable to British attack. Quebec itself sits on a rocky headland that rises hundreds of feet above the confluence of the St.Lawrence and St.Charles rivers. These formidable natural defences combined with a French garrison of 14,000 troops and 106 guns made the city one of the strongest fortified positions on the entire continent.
You can read the whole article at Military History and Warfare Blog.