The transatlantic slave trade is a triangular trade of African men, women and children, which started in the 15th century. Slaves were captured from Africa and sold in the Caribbean islands to work in plantations. Slavery was practiced in the West Indies, it was cheaper and because of their physical structure, they were able to work for long hours in harsh climate conditions. African slaves were practiced in the place of natives, who were not accustomed to work in a harsh landscape and were prone to diseases.
The Cuban fight for independence took place in the late 1890s. U.S. concerns were commercial, economic and about security. Cuba turned into a Communist country in the early 1960s following the revolution led by Fidel Castro.