Why Isn’t Canada Part of the United States?

Why isn’t Canada part of the United States? Canada remained separate because the two countries followed different colonial and political paths, American invasions failed, and Confederation created a separate country.

The longer answer involves different colonies, the American Revolution, two failed U.S. invasions, British rule, French-speaking Quebec and a gradual Canadian path toward independence.

There was no single afternoon when Canada rejected an invitation to become the 14th colony and politely returned the paperwork.

The northern colonies were already different

Before the United States existed, Britain’s North American colonies did not form one unified political community. The thirteen colonies that rebelled had their own governments, economies and grievances. The colonies farther north had different populations and relationships with Britain.

Quebec was especially distinct. Britain had taken New France after the Seven Years’ War, leaving it responsible for governing a predominantly French-speaking and Catholic population.

The Quebec Act of 1774 preserved important elements of French civil law and allowed the Catholic Church to continue. American revolutionaries disliked parts of the act, but many people in Quebec had little reason to gamble their language, religion and legal traditions on an uncertain rebellion led from the south.

During the American Revolution, revolutionary forces entered Quebec hoping to bring the province into the rebellion.

They captured Montreal but failed in their attack on Quebec City on December 31, 1775. American forces eventually withdrew. Quebec did not join the new United States. Parks Canada summarizes the battle and siege in its Fortifications of Québec history.

Our article on Benedict Arnold’s Quebec expedition explains how brutal the journey was before the attack even began.

Loyalists strengthened British North America

After the American Revolution, tens of thousands of Loyalists left the new United States and settled in British territory to the north.

Their arrival reshaped the colonies and added a large English-speaking population that explicitly did not want to live under the new American republic. Britain eventually divided Quebec into Upper and Lower Canada, reflecting different legal, linguistic and settlement patterns.

The War of 1812 did not produce annexation

The United States invaded British North America during the War of 1812. American leaders did not achieve a permanent conquest, and the postwar boundary largely returned to where it had been.

The war did not magically create Canadian identity by itself, but it reinforced the political separation and supplied later generations with a great deal of patriotic material.

In 1867, the Province of Canada, New Brunswick and Nova Scotia entered a new federal union under the British North America Act. The Province of Canada was divided into Ontario and Quebec, producing the first four provinces of the new Dominion of Canada.

Other provinces and territories joined later. Newfoundland entered Confederation in 1949.

Confederation did not make Canada identical to the fully independent country it is today, but it created its federal structure and a national government separate from the United States.

Canadian independence happened gradually

The United States marks independence with a revolution and a declaration. Canada’s constitutional independence arrived through several legal and political stages.

The Statute of Westminster in 1931 greatly expanded Canada’s legislative autonomy. In 1982, the Constitution was patriated, allowing Canada to amend its own Constitution without relying on the British Parliament.

That gradual process can seem anticlimactic beside a revolution, but constitutional paperwork tends to produce fewer burning buildings.

Why did Canada keep the monarchy?

Canada developed as a parliamentary democracy and constitutional monarchy rather than copying the American presidential system.

The Canadian Crown is legally distinct within Canada’s constitutional system. Modern Canada is not governed by Britain, even though the two countries share the same person as monarch.

Canadians can debate the monarchy—and they certainly do—without the country’s independence being in question.

By the time both countries had expanded across the continent, Canada had its own governments, institutions, regional interests and developing national identity.

Annexation would not have been a simple merger. It would have raised enormous questions about French language rights, Indigenous nations and treaties, provincial authority, trade, political representation and control of territory.

Americans sometimes ask the question as if Canada were an unfinished piece of the United States. Canadians generally begin from the more practical position that their country already exists.

The short answer

Canada remained separate because its colonies followed a different path from the thirteen colonies, American military efforts failed, Loyalists reinforced British North America and Confederation created a durable Canadian federation.

The two countries became close allies and trading partners without becoming one country. Considering how often neighbors argue over fences, accomplishing that across the world’s longest international boundary is probably enough.

The city-level military story becomes clearer in our guide to the Quebec City walls.