ABSTRACT
From the perspective of international migrations, the city's cosmopolitanism is a legacy that prepares people for mobility; the historical legacy and the languages, to some extent, are potential instruments of the people. Migration issues are vitally important in terms of the Third Pillar and the Maastricht and Amsterdam treaties. Key documents for an understanding of this perspective include: "Integrated Border Management" in the control of borders that are deemed to be highly permeable, while the main ports and the airport are considered to be central axes; and Communication from the Commission to the Council and the European Parliament. The most important focus point is to see how family strategies fit in with migratory strategies: the choice of a mixed marriage, be it with a moroccans residing abroad (MRE) from the extended family or someone from the same neighborhood, the presence of polygamy structures divided between countries, and the impact of the rising divorce rates.
