Before the French and Indian war started, both the French and British wanted to make alliances with the nearby natives to gain an advantage.
The British made alliances with the powerful Iroquois Confederacy, composed of 5 tribes that surrounded the great lakes.
The French allied themselves with natives that mostly spoke Algonquian. These tribes spread throughout Canada and eastern United States.
Fort Necessity was one of the first battles that you could say initiated the war. It was a between around 400 British under command of Lt. Washington against 700 French troops with Captain Louis Coulon de Villiers in the spring of 17. This was one of the only battles Washington surrendered because of the number disadvantage and the poor defenses of the fort.
The war took a turn in 1758, when Britain sent some of their best generals and troops to America. They also started to pay the colonists to fight, enlisting even more troops to battle.
After 1758, the British won battle after battle. The french troops were not prepared for the sudden increase in British forces, and were overwhelmed. One of the last battles between the French and the British was the battle of Quebec on September 13, 1759. This was a decisive victory for the British, and a few years later the Treaty of Paris was signed.