After the collapse of communism America has to reduce its global activities and overseas military presence and avoid becoming involved in international affairs to strengthen its role at home. In this regards, as Richard N. Haass has argued, the theme most central to the minimalist or neo-isolationist perspective, however, was economy. Some US scholars show the reasons like, possible renewed Russia, the emergence of China, the proliferation of weapons of mass destruction, terrorism attacks, drug trafficking, economic globalization and particularly political Islam as the international threats, for which United States should not step back from the global arena. Based on such vision in the framework of "grand strategy" and "enlargement" Washington tried to expand its influence and presence around the world in general and the Islamic World in particular.