In part 3 of this series, not to be outdone by the Spanish, the French send explorers to North America.

Willing to trade muskets, metal knives, axes, and arrowheads in exchange for furs, the French upset the delicate balance of power among Native American tribes.

As these French traders spread out across what would become known as the Louisiana Territory in search of new fur trapping grounds, to trade with plains tribes, they discover an existing horse trading operation...horses supplied by the Comanches...