 In this early work, Las Casas advocated importing black slaves from Africa to relieve the suffering Indians, a stance he later retracted, becoming an advocate for the Africans in the colonies as well.This shows that Las Casas's first concern was not to end slavery as an institution, but to end the physical abuse and suffering of the Indians.In keeping with the legal and moral doctrine of the time Las Casas believed that slavery could be justified if it was the result of Just War, and at the time he assumed that the enslavement of Africans was justified.