Tecumseh emerged as the most formidable opponent of the White westward expansion, believing that Native American land was a common inheritance, which could not be ceded piecemeal by individual tribes. Together with his half‐brother, the Prophet Tenskwatawa, he formed a confederacy of tribes to negotiate a peaceful settlement with the settlers. This confederacy was defeated at the Battle of Tippecanoe in 1811 and Tecumseh then sided with the British in the War of 1812, but was killed at the Battle of the Thames in 1813. This marked the end of Native American resistance in the Ohio Valley. Tenskwatawa retired to Canada with a British pension, but returned in 1826 and accompanied the Shawnee when they were moved, first to Missouri, and then to Kansas, where he died (c.1837).