Answer:
They told the Indians that America owned their land and offered military protection in exchange for peace.
Explanation:
Some Indians had met “white men” before and were friendly and open to trade. Others were wary of Lewis and Clark and their intentions and were openly hostile, though seldom violent.
To avoid a dictatorship. I would guess
The industrialization created a north that wasn’t dependent on agriculture (farms) for their main source of income, thus they wouldn’t need said slaves to farm and the slavery industry wasn’t seen as a necessity. While the south who had a warmer climate allowed for more farms so they had been slow to industrialization and free labor ( slavery) was very convenient