Introduction
Analysis of the modern Middle East using a sectarian lens is widespread, in academia, the media and in policy circles. A common approach is primordialism, which ascribes conflict in the region to “age-old” tensions within Islam, specifically between Sunnis and Shias. At the other end of the spectrum are the so-called “instrumentalists” who see religious identity as essentially malleable and driven by elite agency and geopolitics. This volume aims for a middle ground: acknowledging the salience of faith and belief while also emphasizing how religious tensions are inflamed through wordly factors like government policies, state collapse, geopolitics, media, and identity entrepreneurs. Furthermore, it situates the ebb and flow of sectarianism within several periods or waves: the aftermath of the 1979 Iranian revolution; the Iraq War of 2003 to 2010 and the period following the 2011 Arab uprisings to the present.