The Dutch also participated in the Triangular Trade across the Atlantic Ocean from Europe to Africa, then to America and then back home.
Making use of the direction of the winds, Europeans first sailed to the West-African coast, where they sold firearms, gun powder, iron, and textile in exchange for slaves. As the Europeans only controlled the coastal area, they relied on local African rulers to bring the slaves to their ships. The slaves were then shipped to America under horrible conditions (in an earlier post about Equiano, I describe these conditions). Once in America, the slaves were sold as plantation workers in exchange for luxury products such as suger, rum, coffee, cotton, silver and tabacco, which were brought back home to Europe.
The fort depicted in the image is sitauted in Ghana. Here, Europeans bought the slaves.