Our main point in this paper is to think about modem politics focusing on exclusion practices. The point of doing so is to reach the limit of its concept, where it becomes more problematic and contradictory. The figures of exclusion are many and they keep proliferating, this paper will focus on the refugee, especially on the legal or illegal immigrant: a refugee from the violence of the market (the new barbarian), as a threat to the world's new orden From the side of the excluded, we will stress the war of the races discourse and use Agamben's main thesis (who is also following Hannah Arendt), which states that the situation of the refugees cracks the very principies of the State-Nation.