Final answer:
The Canadiens, who were French colonists in North America, mainly fought against the British and their indigenous allies during the French and Indian War.
Step-by-step explanation:
Based on the context provided, Louis' story likely refers to historical events associated with French colonization in North America.
The primary combatants that the Canadiens (French colonists in Canada) fought against, specifically in the French and Indian War, were the British (English settlers) and their indigenous allies.
This conflict is denoted in records as the French and their Native American allies versus Great Britain.
While there were conflicts between European powers and various Indigenous tribes, and at times the French aligned with Indigenous peoples, particularly in the fur trade and against the English, the French and Indian War saw them as allies against British forces.
Furthermore, the French engaged in attacks on frontier towns to divert British attention away from Canada, as seen during the King William's War and Queen Anne's War.
Additional historical details indicate that the French had complex relationships with Indigenous peoples including alliances, missionary work, trade, and military strategy rather than outright war.