What caused the end of the British-American Indian alliance in the War of 1812? the American Indian defeat at the Battle of Tippecanoe
Tecumseh’s absence at the Battle of Tippecanoe
the Creek defeat by Andrew Jackson
the death of Tecumseh in the Battle of the Thames

Death of Tecumseh in the Thames Battle caused the end of British-American Indian alliance in the War of 1812.

The leader called Tecumseh was the leader of the Indian confederacy who opposed the American government because of what they've done to the Indian tribes In the past.

After Tecumseh died in the Thames battle, the tribe did not have a leader who will advocate for the alliance with the British government.

Hence, the death of Tecumseh in the Thames Battle caused the end of British-American Indian alliance in the War of 1812.

Therefore, the Option D is correct.

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the death of Tecumseh in the Battle of the Thames

Explanation:

Tecumseh was the leader of the Indian confederacy. He opposed American government because of what they've done to the tribes In the past. A lot of their ancestral lands were stolen by the American government. This was the reason why he decided to convince the Indian tribes to form an alliance with British empire.

After Tecumseh died in the battle, the native Indian no longer have a leader who advocated for the alliance with the British government. The next leader after him prefers the tribes to cut off ties with white settlers altogether.

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