The French and Indian war took place between 1754 and 1763. It had three important leaders:
George Washington
Edward Braddock
William Pitt, the Elder
But all these three men failed in accomplishing to win the conflict. William Pitt, the Elder, was the one who almost won the war, but was forced to resign before its conclusion.
The English finally became successful in defeating the French in the seven years' war under the leadership of:
John Stuart, 3rd earl of Bute