During the formation of the modern state, Europe had witnessed many wars. Since then the international community has been facing thorny challenges, a fact that pushed the philosophers and thinkers, such as Jan Jack Rousseau, Montesquieu, Voltaire, Jeremy Bentham and many others to establish an international system aiming at preserving security and peace among states worldwide. Such system should be different, in its regulations and laws, form the old style of the political and diplomatic customs/ rules which were common back then. Thus, Hameed Al Khateeb’s The Role of the United Nations in the International Conflicts: The Case of Iraq attempts to explore the historical survey of the UN. Accordingly, Iran- Iraq war and the years following the US-led invasion of Iraq in 2003 have been used as case studies in which the role of the UN is thoroughly investigated.