What role did the geography of the sahel play in the rise of the medieval african kingdoms?

it provided access to the large ports on the atlantic.

the lack of fresh water made rulers here more warlike.

it provided a place for trade between the north and the south.

the desert was difficult for outsiders to invade.

Why did the us government remove native americans from the southeast in the 1830s

For in this unit, you read about transitions of power and the formation of newly independent nations in africa, asia, the americas, and the middle east. some of these transitions were peaceful, while others caused long-term instability. why do you think some countries were more successful than others with political transitions? what do you think were the biggest challenges facing newly independent countries? would it have been possible for leaders to prevent these problems before they happened? why or why not?

What was the main aim of operation torch which was launched by the allies