Twenty Years After 9/11: The Fight for Supremacy in Northwest Syria and the Implications for Global Jihad

Abstract: Over the past decade, nowhere in the world has exerted as profound and transformative an impact on the global jihadi landscape as Syria. For al-Qaida, Syria had once been the source of its greatest hope, where dozens of its most experienced leading operatives were dispatched to enhance prospects of building a jihadi state. But in recent years, al-Qa
ida’s Syrian affiliate distanced itself and then broke away altogether, establishing a new locally oriented movement: Hayat Tahrir al-Sham (HTS). In pursuit of local dominance and ultimately survival, HTS has broken one jihadi taboo after another, including turning against al-Qa`ida and the Islamic State and dealing crippling defeats to both in Syria’s northwest. The implications and consequences of these developments are manifold. On the one hand, not only does HTS no longer represent the international terrorism threat that its predecessor once had, it has also almost entirely squashed the global threat posed by its more extreme rivals and played a role in maintaining the longest ceasefire in a decade of war in Syria. On the other hand, however, HTS’ de facto rule of northwestern Syria threatens to ‘mainstream’ a local jihadi model that looks set to experience a substantial boost by the Taliban’s surge to power in Afghanistan. Should conditions dramatically change, it could also come to represent a strategically significant terrorist safe haven once again—on Europe’s doorstep.
Over the past decade, nowhere in the world has exerted as profound and transformative an impact on the global jihadi landscape as Syria. It was on Syrian soil that the Islamic State in Iraq and the Levant (ISIL) first emerged in 2013 and where its behavior then sparked its expulsion from al-Qaida. That break-up and the Islamic State’s mid-2014 unilateral declaration of a caliphate caused shockwaves worldwide, catalyzing a split of the jihadi community into two rival and later globally hostile movements. As the world collectively mobilized against the Islamic State, al-Qa
ida was left reeling when faced by the Islamic State’s unprecedented challenge to its authority.
In response to the Islamic State’s transnational challenge, al-Qaida chose Syria as the focal point for its push back, dispatching many of its most senior and experienced operatives there to reinforce al-Qa
ida’s standing, through its affiliate Jabhat al-Nusra. While the arrival of the so-called “Khorasan Group” drew U.S. counterterrorism strikes, it also catalyzed internal tensions and an erratic process of introspection within Jabhat al-Nusra that eventually led to its departure from al-Qa`ida in 2017 and the advent of a third model of salafi-jihadi activity: Hayat Tahrir al-Sham (HTS) and its nationally oriented effort.