The presence of the Other is often not well accepted. Meanwhile, the Other attempts to construct a distinct identity contrasting the national identity of an opponent by whom he feels rejected. What emerges from these oppositions is a re-territorialization of identities based on reconstructed ethnic or religious solidarities. Frontiers are being erected in this European context, inside the French nation-state and within the daily life of everyone (Badie, 1995). Paradoxically, this occurs at a time when immigration has become transnational through its references, choices and through European citizenship. This generates a strange dialectic – the imaginary of the Other both shares in the definition that the political community makes for itself and sometimes creates plural allegiances in a renewed definition of citizenship.