This chapter examines whether geographic location and Islamic schools of jurisprudence matter in how the Islamic milieu views international conflict management methods. The scholarly literature has been treading behind in pondering whether the regional particularities of the Middle East, Asia/Oceania, and Africa or the doctrines of specific Islamic schools of jurisprudence contribute to how the Islamic milieu perceives international conflict management. The empirical analyses (1945–2012) demonstrate that while subscribing to a specific school of Islamic jurisprudence has no bearing on ILS’ preferences with respect to international conflict management, regional differences seem to matter considerably in this regard. While the rise of nation-states has substantially weakened the position of Islamic legal schools on the axis of authority, regional customs and long-standing traditions continue to play a key role in these societies. The Middle Eastern states are more likely than other ILS to attempt mediation and conciliation in territorial disputes.