Security is a cornerstone of development and progress in a free society. A basic and widespread understanding of the importance of security as a guarantee of citizens’ well-being and the stability of the State itself is therefore essential. Moreover, the Middle East is home to many diverse peoples, with ancient and proud cultures, in varying stages of political and socio-economic development, often times in conflict. Now in a state of historic flux, the Arab Spring has transformed the Middle Eastern landscape, with great consequence for the Arab national security strategies of the neighboring countries and their foreign relations. The Arab National security environment in the Arab World has become increasingly complicated after the independence. This paper identifies several important trends that are shaping the Arab national security and identifies their implications with the rest of the world However; ongoing domestic changes throughout the region will become increasingly important as well. Issues such as political reform, Arab spring revolution, economic reform, civil-military relations, leadership change, and the information revolution are all affecting the regional security dynamics. This research paper examines each of these issue areas and identifies some of the challenges that they pose for the Arab world international relations. The paper covered, Dimensions, perceptions, risks and future strategy security; challenges of natural geography; political contestation following the Arab Spring and state responses; the military tool; armed non-state actors; US Middle East policy; regional security architecture; and the historical role of the army in Middle East state-building. The National security is a concept that a government, along with its parliaments, should protect the state and its citizens against all kind of "national" crises through a variety of power projections, such as political power, diplomacy, economic power, military might, and so on.