What prompted the French and Indian War?

The clash of interests between the empires English and the French in the race for expanding influence and control over the Americas

Explanation:

The French had colonies in today's North America corresponding to Canada (Quebec) and other likes Luisiana, New Orleans, etc. The presence of much more indigenous populations among the territories occupied by both the English and the French created alliances. In most cases this alliances were only used for counter balancing the balance of power.

The French transmitted a different way of colonization, and of course the catholic way of life collided eventually with the protestant vision the English had adopted in their colonies.

As the outcome tells, in 1763 Britain emerges victorious, France is forced to sign the Treaty of Paris. Florida is then given to the British as well as New France, and Luisiana goes to Spain. The presence of the French and its influence is greatly diminished.