Causes of the War of 1812

On this day (June 18) in 1812, President James Madison signed the war resolution passed by both houses of Congress, officially confirming a state of war with the British Empire.

For what reasons was the War of 1812 fought? Was it a war of American aggression or a second War for Independence? Was the United States justified to declare war on Britain and invade Canada?

For answers to these questions, watch this video...