Indiana in the War of 1812

During the War of 1812, Indiana Territory was home to several conflicts between the United States territorial government and partisan Native American forces backed by the British in Canada. The Battle of Tippecanoe, which had occurred just months before the war began, was one of the catalysts that caused the war. The war in the territory is often considered a continuation of Tecumseh's War, and the final struggle of the Sixty Years' War.

The native tribes who were part of the battle joined forces with the British in Canada at the onset of the war. Led by future U.S. President William Henry Harrison, American forces from Indiana, Ohio, and Kentucky were able to turn the tide of war on land that initially begun badly for the United States. After driving tribal forces into Canada, the American forces proceeded to invade Canada, rout the British army, and secure victory of American forces in the Northwest.

Beginning with the 1809 Treaty of Fort Wayne, tensions between the settlers in the Indiana Territory and the Indians began to increase dramatically. The events led to the Battle of Tippecanoe on November 6, 1811 during what is known as Tecumseh's War. In the battle William Henry Harrison led the territorial militia and army regulars against the forces of Tecumseh's Confederacy at Prophetstown. The confederacy's defeat was a major blow to their plans for a larger uprising, but left the tribes looking to outward sources of support. The British accepted an alliance with the tribes and the conflict merged with the War of 1812 in the following year.Henry Clay and his supporters in Congress attacked and denounced the British who had supplied firearms to the western tribes and the Battle of Tippecanoe further raised tensions between the United States and Great Britain. Although Tecumseh publicly claimed to be at peace with the United States, he was privately encouraging his followers to prepare for war. He sent messengers to the British to attempt to stir them, reporting that the Americans were amassing troops for an invasion of Canada.

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