As a result of the war of 1812, many american indian groups

made alliances with settlers.
lost their land to settlers.
continued to fight settlers.
worked together with settlers.

This was a war between Great Britain and the United States in 1812. It did not cause any geographical changes. The principal result of the war was two centuries of peace between the United States and Great Britain. The British didn't pay so much attention to the war, they concentrated on their final defeat of Napoleon in 1815. The USA did not gain any territory from British North America, contrary to many American politicians' land from Spain.