Rising tensions between the regional tribes and the United States led to Tecumseh's War in 1811. The Kickapoo were among the closest allies of Shawnee leader Tecumseh. Many Kickapoo warriors participated in the Battle of Tippecanoe and the subsequent War of 1812 on the side of the British, hoping to expel the American settlers from the region. A prominent, nonviolent spiritual leader among the Kickapoo was Kennekuk. He led followers during Indian Removal in the 1830s to their current tribal lands in Kansas. He died there in 1852.