British merchants and government agents began supplying weapons to Indians living in the United States following the Revolution (1783–1812) in the hope that, if a war broke out, they would fight on the British side. The British further planned to set up an Indian nation in the Ohio-Wisconsin area to block further American expansion. The US protested and declared war in 1812. Most Indian tribes supported the British, especially those allied with Tecumseh, but they were ultimately defeated by General William Henry Harrison. The War of 1812 spread to Indian rivalries, as well.