Question

What were the issues that caused congress to demand open hostility with Britain in 1812?

Answer 1

Independence on trade.

Explanation:

Great Britain and France had been at war, off and on, since 1793. The United States, which traded with both countries, was caught in the middle. Britain blocked all French seaports and insisted that U.S. ships first stop at a British port and pay a fee before continuing to France. Britian was also interfering in the affairs of Canada, America's neighbor.

Source:http://www.americaslibrary.gov/aa/madison/aa_madison_war_1.html