(Oct. 5, 1813), in the War of 1812, decisive U.S. victory over British and Indian forces in Ontario, Canada, enabling the United States to consolidate its control over the Northwest.

After the U.S. naval triumph in the Battle of Lake Erie in September 1813, the British commander at Detroit, Brigadier General Henry A. Procter, found his position untenable and began a hasty retreat across the Ontario peninsula. He was pursued by about 3,500 U.S. troops under Major General William Henry Harrison (Harrison, William Henry), who was supported by the U.S. fleet in command of Lake Erie. The forces met near Moraviantown on the Thames River, a few miles east of what is now Thamesville. The British, with about 600 regulars and 1,000 Indian allies under Tecumseh, the Shawnee intertribal leader, were greatly outnumbered and quickly defeated. Many British troops were captured and Tecumseh was killed, destroying his Indian alliance and breaking the Indian power in the Ohio and Indiana territories. After this battle, most of the tribes abandoned their association with the British.

After destroying Moraviantown, a village of Christian Indians, the U.S. troops returned to Detroit. The U.S. victory helped catapult Harrison into the national limelight and eventually the presidency.