Cabinda.
As an important port established by the Portuguese in Angola, Cabinda was built too late to compare with the cities of Luanda or Benguela.
Currently, Cabinda is essentially a small coastal village left behind by the Portuguese on the Atlantic Ocean, or a small military fort, with a small area and incomplete infrastructure.
Both Luanda and Benguela have over a hundred years of development history, while Cabinda was only started by the Portuguese as a northern coastal fortress city in the 1980s. If not for the Berlin Conference and the establishment of the Belgian colony, the Portuguese would have had no interest in this coastal rainforest area.
Of course, Cabinda has another important function, which is to restrict the mouth of the Congo River. Previously, East Africa and the Portuguese were in an antagonistic relationship, so the development of Cabinda by the Portuguese also had the purpose of blocking East Africa from access via the Congo River.
