What challenges did the immigrants face in the U. S. during the 1800s

What refers to the existence of more than one level of government in the country

Why did the medicine lodge creek treaty fail to bring peace to west texas? a. native americans protested the sale of weapons on reservations. b. supporters of the treaty face discrimination in their own communities. c. the united states government and native americans both refused to fully carry it out. d. the united states government prevented its military from entering reservations.

Geography and harsh weather played a major role in the napoleons defeat during his invasion of