The early Anglo-Franco (English- French) conflict before the Seven Years War was a time of colonial expansion, with the French, Spanish and British all fighting over North America, attempting to claim as much land as possible.
Early French Military Successes
As both empires expanded, they had more conflicts all around the world, not just in North America. There were fights in Britain, France and many other places.
Later British Mitiary Sucesses
The Seven Years War really began when George Washington attempted to build a British fort where Fort Duquesne was, and he fought the French there and lost. Washington also helped cause the war when he slaughtered a French scouting party.
Results and Exchange of Territories
Early on in the war, the French had many military successes, one being the succesful defense of Fort Duquesne not once, but twice. They made up the disadvantage of smaller numbers with ambush tactics and strategical advantages.
Later in the Seven Years War, Prime Minister William Pitt recognized that the British were losing the Seven Years War because not many supplies were being given and there were no good commanders on the British side, so Pitt spent more money and better generals, leading to British success.
After the end of the French and Indan War, the British and French signed the Treaty of Paris, which effectively kicked the French out of North America. The Treaty of Paris gave England control of the Ohio Rver Valley and Canada.