Little research has been done using Social Disorganization Theory to explain the radicalization of Muslim immigrants in Europe and the United States. The author\u27s intention is to offer a concise and clear comparison between the relationship of societal integration and radical Islam among Muslims living in Europe and the United States. The research modeled the application of Social Disorganization Theory which is seated in the idea that social disorder in communities creates disagreements in fundamental values, norms with behavioral irregularity and deviance. Radicalization of Muslim immigrants living in non-Muslim countries exists when there is a low degree of internal bonding to individuals and institutions in their societies. Radicalization of Muslims can lead to their interest, support and even participation in terrorist groups and activities against non-Muslim communities. The author examined independent variables to test the level of societal integration and radicalization among Muslim immigrants living in Europe and the United States. The benefit of highlighting vulnerabilities among Muslim immigrants may prevent and reduce the spread of radical Islam and possible terrorist attacks in Europe and in the United States
