Answer:
The William Pitt´s war intervention was fundamental in the outcome of it, the British winning over the Indian allies and French, William Pitt worked reinforcing two critical points, that once were changed, the war started to be favorable for his side.
1) William Pitt´s promoted the movement of British generals turning to colonial Ranger units to fight France's Indian allies in similar conditions, this way Pitt´s added more experience to the army, giving more knowledge about the Indian allies, war tactics, and How to respond to them.
2) He was a naval enthusiastic and knew that this army sector could change completely the course of the war, he was conscient of the potential it had, so he fully utilized the British navy to cut off supplies to New France. Once France could no longer supply the Indian allies with different resources, the allies started to lose advantage, motivation and inevitably started to note the lack of goods to maintain their army.
