Answer:
Yes, the US fairly bought much land from the French. However the US got into a war with Spain for the southwest region, however, that is justifiable.
The Native Americans had to move because they took over land.
The 2nd & 3rd options
#PLATOFAM
They brought horses. It was easier for them to catch up with the buffalo and hunt instead of having to throw weapons from a far and run after the Buffalo.
