How did Portuguese merchants obtain most of their slaves in Africa?

Question

Quizplus · Accepted Answer

Portuguese merchants typically obtained most of their slaves through trading with local leaders, who captured and sold members of enemy tribes or people who were considered criminals or debtors. While some slaves may have been taken through warfare, raiding parties, or seizing people on the coastline, trading with local leaders was the most common method of acquiring slaves for Portuguese merchants.

How Did Portuguese Merchants Obtain Most of Their Slaves in Africa