The military history of Canada comprises centuries of conflict within the territory, and interventions by the Canadian military in conflicts and peacekeeping missions worldwide. For millenia, the area comprising modern Canada saw sporadic conflicts among Indigenous peoples. In the 17th and 18th centuries, Canada was the site of several colonial conflicts, including four major colonial wars between New France and British America. The conflicts spanned nearly 70 years, and also involved various First Nations.

The French and Indian Wars were a series of conflicts that occurred in North America between 1688 and 1763, some of which indirectly were related to the European dynastic wars. The title French and Indian War in the singular is used in the United States specifically for the warfare of 1754–63, which composed the North American theatre of the Seven Years' War and the aftermath of which led to the American Revolution. The French and Indian Wars were preceded by the Beaver Wars.