Why did the Continental army invade Canada?
The Invasion of Canada in 1775 was the first major military initiative by the newly-formed Continental Army during the American Revolutionary War. The objective of the campaign was to gain military control of the British Province of Quebec, and convince the French-speaking Canadiens to join the revolution on the side of the Thirteen Colonies.
The Second Continental Congress met in Philadelphia in the spring of 1775. Hostilities between England and the colonies had already broken out--Bunker Hill, Ticonderoga, and Arnold's failed attempt to invade Canada. The Congress acted as the government for the colonies when it became obvious that war would result between England and the colonies. They appointed Washington as commander of the Continental Army and approved the writing of the Declaration of Independence.
There was a war between the American and the Canadian forces, when the the USA tried to invade Canada. While the US Army was in Canada, the British attacked New York, and burned it down. This was in 1812. However, in 1814, the Regular Army prevailed against the British army under the command of General Scott and Brown, in the Niagara campaign.