How did the slave trade differ in different parts of africa?
and also
who was most responsible for the tragedy of the slave trade?

The three other slave trades -- the trans-Saharan, Red Sea, and Indian Ocean slave trades -- are much older and predate the trans-Atlantic slave trade. During the trans-Saharan slave trade, slaves were taken from south of the Saharan desert and shipped to Northern Africa

Explanation:

The Atlantic slave trade. A main cause of the trade was the colonies that European countries were starting to develop. In America, for instance, which was a colony of England, there was a demand for many labourers for the sugar, tobacco and cotton plantations.

c) troops march forward in close formation against newer, more accurate weapons

native americans suffered high rates of poverty and unemployment.

during the late 1960s and early 1970sthe need for political militancy grew among the native americans. throughout the 1960s, they had been the nation's poorest minority group, the most deprived group, according to practically every socioeconomic measure. in 1970, the indian unemployment rate was 10 times the national average, and 40 percent of the native american people were below the poverty line.