However, the confederation fell apart in 1813 following his death at the Battle of the Thames. Under Tecumseh's leadership, the confederation then went to war with the United States during Tecumseh's War and the War of 1812. In November 1811, an American military force under the leadership of William Henry Harrison engaged warriors associated with Tenskwatawa in the Battle of Tippecanoe. Together, they worked to unite the various tribes against the European settlers coming across the Appalachian Mountains and onto their land. Shawnee leader Tecumseh, the brother of The Prophet, developed into the leader of the group as early as 1808. The confederation grew over several years and came to include several thousand warriors. Tecumseh's confederacy was a confederation of native Americans in the Great Lakes region of North America that began to form in the early 19th century around the teaching of Tenskwatawa (The Prophet). 19th century Native American confederation in the Great Lakes region

Tecumseh war of 1812 us navy