in the United States. The start of the war on terror was accompanied by a rise in military enlistment that included not only lower-income Americans but also middle-class and upper-class citizens. This nationalism continued long into the War in Afghanistan and Iraq War. Contemporary United States Nationalism and Americanism remain topics in the modern United States. Political scientist Paul McCartney, for instance, argues that as a nation defined by a creed and sense of mission, Americans tend to equate their interests with those of humanity, which informs their global posture. In some instances, it may be considered a form of ethnocentrism and American exceptionalism. Due to the distinctive circumstances involved throughout history in American politics, its nationalism has developed concerning loyalty to a set of liberal, universal political ideals and perceived accountability to propagate those principles globally. Acknowledging the conception of the United States as accountable for spreading liberal change and promoting democracy throughout the world's politics and governance has defined practically all of American foreign policy. Therefore, democracy promotion is not just another measure of foreign policy, but it is instead the fundamental characteristic of their national identity and political determination. Varieties of American nationalism In a 2016 paper in the American Sociological Review, "Varieties of American Popular Nationalism", sociologists Bart Bonikowski and Paul DiMaggio report on research findings supporting the existence of at least four kinds of American nationalists, including, groups which range from the smallest to the largest: (1) the disengaged, (2) creedal or civic nationalists, (3) ardent nationalists, and (4) restrictive nationalists. Bonikowski and Dimaggio's analysis of these four groups found that ardent nationalists made up about 24% of their study, and they comprised the largest of the two groups Bonikowski and Dimaggio consider "extreme". Members of this group closely identified with the United States, were very proud of their country and strongly associated themselves with factors of national hubris. They felt that a "true American" must speak English and live in the U.S. for most of their life. Fewer, but 75%, believe that a "true American" must be a Christian, and 86% believe a "true American" must be born in the country. Further, ardent nationalists thought that Jews, Muslims, agnostics and naturalized citizens were something less than genuinely American. The second class, Bonikowski and DiMaggio considered "extreme", was the smallest of the four classes because its members comprised 17% of their respondents. The disengaged showed