As the British faced defeat after defeat in North America, European nations began to contest imperial claims elsewhere in the world. In 1756 France and Great Britain officially declared war against each other. Eventually Austria, Russia, Sweden, most of the German states, and Spain allied with France, while Portugal and Prussia sided with Great Britain. Naval warfare erupted in the Mediterranean Sea and the Atlantic and Indian Oceans. Battles were also fought in Europe, the West Indies, India, and the Philippines. By the end of 1757, Britain and its allies had been defeated in nearly every part of the globe. The war appeared to be nearing its end, with France in control.
Then in the summer of 1757, William Pitt took charge of the British war effort and transformed the political and military landscape. A man of formidable talents and grand vision, Pitt redirected British efforts toward victory in North America, while Prussian forces held the line in Europe. Pouring more soldiers and arms into the North American campaign along with young and ambitious officers, Pitt energized colonial and British troops.
By the summer of 1758, the tide began to turn. In July, British generals recaptured the fort at Louisbourg on Cape Breton Island, a key to France’s defense of Canada. Then British troops with George Washington’s aid seized Fort Duquesne, which was renamed Pittsburgh. Other British forces captured Fort Frontenac along the St. Lawrence River, while Prussia defeated French, Austrian, and Russian forces in Europe and Britain gained key victories in India (Map 5.1). In 1759 General Jeffrey Amherst captured Forts Ticonderoga and Crown Point on Lake Champlain. Then General James Wolfe, with only four thousand men, attacked a much larger French force in Quebec. Despite heavy casualties, including Wolfe himself, the British won Quebec and control of Canada.