Cape Verde is a member of the Economic Community of West African States (ECOWAS), an African regional bloc with aims for internal integration similar to those of the EU, and even though it has not yet participated in all of its activities, it cannot have membership in both organizations at the same time. It is also a member of the African Union, an organization aiming for a common currency in Africa, a single defense force for the African continent and an African Union head of state.

Can we conclude that are the cape verde islands in the eu?
no