African Trading King
From this picture, it sums it up how these three Nations worked together. Even though it was at the expense of others (Africans) http://triangletradeag.weebly.com/maps-and-pictures.html
African Slave King-connection to others around
African Trading Kings were the kings of African countries on the mostly on the western coast. They made deals with Europe to trade guns and other supplies for the use of slaves. Most of the African were not previously slaves to Africa, they were free people that were taken for work, and traded with Europe to do field work in America to build up the colonies. Although it was well know that slave trading was mostly in America, some of them were sent to Europe to live, such as Portugal, France, and England.
African Trade Kings were sufficient because they definitely help diverse the world. The transatlantic slave trade forced the migration of about 14 million people from Africa to the Western Hemisphere; this went on from the 15th century through the whole 19th century.
But there are also the bad part is slave trade let to terrible oversea transportation, that did not just kill Africans, it killed many other people as well. The total number of deaths is unknown, but it greatly accumulated during the wars and shipping than all else. The shipping route was called Middle Passage, the journey from Africa to America.
In conclusion you can pull out very little good the Africa Trade Kings did, compared to the bad. But they definitely effected the world, in a huge way. From making it more diverse to leading deaths among many Africans, for profit.