اسمهان بلة2025-11-172025-11-172025https://repository.univ-msila.dz/handle/123456789/47795This study explains how to build a theoretical interpretive framework for the subject of International Cooperation. Through the debate between Neoliberalism and Neorealism, by reading the intellectual foundations and the most important assumptions for the two theories. From the Neoliberal point of view, The International Cooperation has become widespread in all fields such as, economic, political, environmental, health and other sectors. From neoliberal, the spread of International Institutions has led to ensure stability through International Agreements and Treats between states. By contrast, Neorealism sees that the Anarchy of the International System, Cheating and the hegemony of Great Powers prevented achieving cooperation. Neorealists believe that the continuation of cooperation is tied to interests of the dominant powers in these institutions. Also, this study examines the Neorealist - Neoliberal Synthesis that was presented within Rational Paradigm and demonstrated the convergence of the two theories in the face of Post Positivist approaches. Despite the convergence each theory try to defend to its Ontological Identity.otherInternational CooperationNeoliberalism theoryNeorealism theoryRational Paradigmthe NEO-NEO Synthesis.Thesis