Terrorist events in Britain in recent years indicate that some British Muslims do not view their lives through a domestic lens; that is, they do not embrace British norms and values. Instead, they identify with a global Muslim community in a radical way. This thesis explains what is fueling the rise of pan-Islamism in Britain. For many Muslims, their religious identity is stronger than their British identity because they are alienated from the rest of society. The alienation is generated by poor socioeconomic conditions; and discrimination, racism and Islamophobia. The most important source of alienation, however, is the perception that British foreign policy in Muslim lands is leading to oppression and killing of their Muslim brothers and sisters. Alienation would not necessarily translate into mobilization and action was it not for radical leaders of the domestic Islamist community who were able to exploit protections provided by liberal British laws and traditions. These men inspired the alienated to adopt their pan-Islamist ideology.