The purpose for undertaking this case study of the Shi'a in Lebanon is threefold. First, as a hypothesis-generating case study, its objective is to formulate relevant hypotheses about religious resurgence and religious terrorism. This study achieves this objective by formulating 14 general and nine special hypotheses, and testing and confirming the latter. Second, the purpose of this study is also to explore the trajectory of the Lebanese Shi'a's sectarian mobilization. This exploration permits the conceptualization of geocultural immobility and its effect upon a religious minority. It deduces that the Lebanese Shiga's geo-cultural immobility is directly related to their active religious resurgence. The third purpose is to study the changes in the objectives and tactics of a religious minority, that of the Muslim Shi'a in Lebanon. This research is able, via its primary and secondary data, to show a relationship between the Lebanese Shiga's religious resurgence and their use of religious terrorism. This study introduces the concept of geo-cultural immobility. A minority's geo-cultural immobility is identified as an imposed low geographic mobility within a nation with low cultural pluralism. It establishes the Lebanese Shi'a's geo-cultural immobility, to which it attributes their religious resurgence. This Lebanese Shi'a religious resurgence is proven in this research to produce zealots needed by religious terrorist organizations. This study also introduces and defines religious terrorism as violent acts performed by elements of a religious organization or sect, growing out of a commitment to communicate a divine message. It distinguishes between religious terrorism, secular terrorism, and fighters for religious freedom, which are based on the actors' motives, affinities, and consciousness of the maliciousness of their acts. The primary and secondary data and the quasi-experiment in this research support its special hypotheses. They indicate a statistical correlation between eight Lebanese Shi'a cultural and religious attributes: (1) age, (2) marital status, (3) extent of Shi'a Imam's militancy, (4) personal religious commitment and religious resurgence, (5) zealotry, (6) geo-cultural immobility, (7) imprisonment of family members, and (8) willingness to commit terrorism.