ABSTRACT
Idealists believe that the spread of the principles of neoliberal peace in foreign policy empower the world public opinion and make it a more powerful force that no government can resist. Idealism depicts a future, complete peace incorporating social, political and economic harmony represented by internationalism, world government and federation. Realism took root in philosophy, theory and international relations known as political realism, realpolitik or power politics, and there has been a series of realist tradition debates. Thucydides opened a series of discussions about general features of realism and the Melian Dialogue: the first realist-idealist debate. The first generation of Critical Theory went about the critique of ideology that is a form of criticism to seek for human emancipation in circumstances of domination and oppression. Later, Horkheimer used the theory in interdisciplinary empirical social research in the ways of explanatory, practical and normative theoretical frameworks from ideology to social facts.
