President Jefferson had appointed Meriwether Lewis as…
September 1807 CE
There are continuing confrontations between the Osage and other tribes in this area.
Lewis anticipates that the U.S. would have to go to war with the Osage, because of their raids on eastern Natives and European-American settlements.
However, the U.S. lacks sufficient military strength to coerce Osage bands into ceasing their raids.
It decides to supply other tribes with weapons and ammunition, provided they attack the Osage to the point they "cut them off completely or drive them from their country."
For instance, in September 1807, Lewis persuades the Potawatomi and Sac and Fox to attack an Osage village; three Osage warriors are killed.
The Osage blame the Americans for the attack.
One of the Chouteau traders intervenes, and persuades the Osage to conduct a buffalo hunt rather than seek retaliation by attacking Americans.