Final answer:
The Battle of Tippecanoe led Tecumseh to strengthen his alliance with the British against the United States, impacting the War of 1812.
Step-by-step explanation:
The Battle of Tippecanoe impacted the War of 1812 significantly. This battle led Tecumseh to seek further alliances with the British against the Americans. After his brother Tenskwatawa's defeat at Tippecanoe, Tecumseh’s resolve strengthened, and he continued to forge a strong Native American alliance to oppose American expansion.
The dissolution of Prophetstown and the loss of British supplies weakened the Native American position, but Tecumseh kept fighting alongside the British until his death at the Battle of the Thames in 1813. The battle's aftermath, thereby, served to incite rather than dissuade Native American resistance.