Pointing at addressing the root causes of terrorism and other new threats to international security, the practice of Intercultural Dialogue is surprisingly still an undeveloped issue – with a few important exceptions – in the vast literature of International Studies. Considering the recent debates on the developments of the international community, the constructivist turns into terrorism studies and the shift of the international security environment from a state-centred system towards a network of a variety of actors. It becomes particularly relevant to take into account the activities that the member states of the UN Security Council have proposed in their statements and the emerging role that, in such a light, they envisage for non-state actors. To the social construction of terrorism, the international community could respond through the practice of constructing a security community based on the de-construction of cultural stereotypes that have been involved in the field of international relations.