Nassim Yaziji is a researcher specialized in international relations and the Middle East. Yaziji's research interests include the international order and organization in the post-9/11 era, Middle East geopolitics, Middle East policy and Middle East democratization. His Middle East research project's objective is to reach a transparent empirical understanding of the post-Iraq Middle East, and then a modern and realistic perspective and approach to the Middle East and its affairs.

Yaziji adopts scientific realism. He adopts a perspective rests on the principles of Neo-Internationalism as defined by Yaziji himself. Yaziji's Neo-Internationalism advocates a state of the international relations and politics in the post-9/11 era that constitutes a normal evolution of the Westphalian international system and an indispensable realistic substitute for international isolationism.

Yaziji advocates the acknowledgement of the human liberty at the level of international organization, and advocates the promotion of freedom and democracy worldwide, especially in the Middle East. He fights totalitarianism and authoritarianism in all their religious and secular forms, and considers them as aggression against humanity.