This project is twofold. First, the research revisits the migration – development nexus by adopting a transnational circulation approach, and considering the social changes caused by local, political, economic and social development interactions, both in the departure and the host countries. Second, it examines how the immigrants and their children are getting included in the French society while maintaining - if not developing - multiple forms of belonging, identification, and social and political involvement, in all the places they feel they belong to, on a global scale. The complex forms of anchorage and circulations and their respective issues are analysed beyond the usual dichotomies : “migrant-stranger” and “incorporation-return migration”. We use instead the concept of belonging, meaning both voluntary adhesion and/or feeling, and referring to territorial presence, multiple identities and commitment. This action research intends to move beyond the integration/incorporation studies, and to take into account at the same time the diverse points of views of migrant populations, migrant children born or raised in France, and institutional partners.