Answer:
The Atlantic Slave trade was not only a benefit to colonist nations who sought out slaves. The kingdoms of Africa also took advantage of this opportunity. The colonist nations would pay the governments of Africa handsomely for their slaves, so the kingdoms of Africa would willingly hand over their own people to the colonists for the money. This would eventually lead to competition among the kingdoms and cause millions of African people to be sold off as slaves, ergo, causing the kingdoms to lose many of its workers and human resources; thus, causing the swift collapse of the African kingdoms.
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