In redefining central concepts and causal relations, this paper takes a fresh look at the conflict between armed groups like the Islamic State in Iraq and the Levant (ISIL) and the US-led international alliance. Analysis begins with the hypothesis that “foreign intervention leads to extremism” and goes on to examine its opposite, that “extremism leads to foreign intervention.” In exploring this mutual correlation – regardless of its validity – the paper finds limited analytical space to understand the nature and terms of the current conflict, and thus redefines this relation in a way that puts “foreign intervention” and “extremism” in an alternative conceptual framework. This framework becomes one of “re-regionalization,” and offers new possibilities for understanding the current conflict.