Answer:
The War of 1812 was declared by the United States Congress to Great Britain on June 18 of that year, highlighting some conflicts that were not resolved by the war of independence, which took place two decades earlier.
Causes:
Restrictions on trade imposed during the war of Great Britain and France, dominated by Napoleon Bonaparte; the imprisonment of American merchant seamen by the British Navy; and the alliances of the British with indigenous tribes during the expansion of the Americans through indigenous territories and into Canada.
