Causes of the War
1) The Americans kept pushing west into what was called "Indian Territory".
This put the settlers in conflict with the Natives. The Americans thought that
the British were helping the Natives revolt, because the British gave guns and
many supplies to the Natives as part of the fur trade.
2) Britain was at war with France. The British wanted to stop France from getting supplies or being able to trade with its colonies. The Americans, because they were neutral in the fight, thought they should be able to trade with the French. The British disagreed and passed "Orders-in-Council" which allowed the British Navy to stop and turn back a number of American merchant ships.