 At the same time, the empire continued slave raids throughout the region and became a major supplier to the Atlantic slave trade.In the late 18th century, Oyo put pressure onto Dahomey to reduce its participation in the slave trade (largely to protect its own slave trade) and Dahomey complied by limiting some of the slave trade.However, even with this, the empire was a significant player in the slave trade supplying up to 20% of the total slave trade and providing the largest portion of revenue for the king.