The EU dumps a ton of subsidies into agriculture, both to ensure self-sufficience and to dump excess produce into markets in Africa and Asia so they don't become competition for the agribusinesses here. The best-known example is poultry - Euros prefer chicken breast fillet over all other parts of the animal, and the market caters to that demand by killing enough birds to meet it, which creates a ton of excess drumsticks, wings and other chicken parts. A lot of that is put on refrigerated ships and hauled over to West African countries like Nigeria, where chicken is the most popular meat. Even with the cost of transport, it's still easier than throwing all the excess chicken corpse parts out. And this gets dumped on the market there at prices local farmers can't compete with, meaning that they go out of business, creating dependency on the chicken ships from the EU.