Why Mosul matters: security, sectarianism and stability in a post-ISIS Iraq

Katherine Pye

As Iraqi government Special Forces enter the outskirts of Mosul and Kurdish forces advance from a new front in the north, the world witnesses the beginning of the end of the great black banner which once sprawled across the Levant.

Relief, however, will be short lived. The defeat of ISIS is by no means the dawn of a new Iraq. If the current course is pursued, the events of 2016 will continue a cycle of insurgency and jihad which has spanned decades. It may lead the country to the same fate as its Syrian neighbor with global repercussions to match.

However, Mosul presents an unrivalled opportunity to reverse this. Firstly, the battle for Mosul will be the largest deployment of Iraqi forces since 2003, significant in itself as a push by the weak Iraqi state to assert its dominance in a region of Iraq where they had never traditionally exerted much control. If the government is successful it is a promising first step for a stable new Iraqi state.

Secondly, Mosul embodies political and strategic problems in the nation; the Iraqi army are leading forces inside the city whilst their supporters are disparate and disjointed. They form a highly unstable fractious coalition including Kurdish Peshmerga forces, Sunni tribal units and Shia militia. Such a multilateral attack will set an important precedent for how ethno-religious groups are able to work with each other as Iraq begins reconstruction.

Furthermore, unlike previously liberated cities such as Tikrit and Fallujah, the northern city of Mosul is religiously diverse, meaning the way in which anti-ISIS forces handle their victory and treat Mosul’s inhabitants in the immediate aftermath could have crucial implications for ethno-religious politics in Iraq in the future. 

Government responses to divided communities such as Mosul will also have a real impact on geopolitics in the region. Whilst the USA has poured funds into Pershmerga coffers, Turkey has been watching the situation closely. Erdogan’s government have been eager to play a more dominant role since interventions in Jarabulus last September which threatened the Kurds with full-scale retreat.

Iran too has demonstrated strategic interests in the region, with the government funding the launch of a "United Shia Liberation Army", linking sectarian conflict in Iraq to Shia ‘struggles’ in Yemen and Syria. Should sectarian violence break out after Mosul is liberated, there are more than enough key players to intervene. A Syrian-style proxy war is never far away.

Yet despite this, groups fighting ISIS have not yet all met and there is no agreed verdict on what victory would look like in a political rather than military sense. As in 2003, troops move in once again without a clear strategy or any plans beyond the immediate term. Astoundingly, even US strategy in the region is overwhelmingly  ‘short term’, as outlined by Brett McGurk, the US Special Presidential Envoy for the Global Coalition to Counter ISIL. Instead, each stakeholder will most likely rush to fill the ISIS vacuum by grabbing as much power as possible. This risks collapsing back into turmoil after fighting finishes, in a settlement where central government authority has never been assertive even in peacetime.

But what is often forgotten is that in the months that follow a defeat of ISIS on the ground, an estimated 30,000 foreign fighters will travel back to their home states. Like Al-Qaida after the US invasion of Afghanistan, these brutalised individuals represent an urgent yet invisible security threat, transforming from a state to a “brand”, maintaining an ability to inspire and recruit all over the world.

ISIS itself was born under conditions dangerously similar to those we see in Iraq today. The founder of Jama'at al-Tawhid wal-Jihad, the Iraqi Sunni insurgency which became ISIS, was Abu Musab Al-Zarqawi. Zarqawi was a Jordanian fighter living in Afghanistan under the Taliban when the US invasion forced them out. Moving to Iraq, he worked underground to build a new Islamic state, carrying out suicide attacks in Shia areas to heighten underlying sectarian tensions. Aggression against Sunnis from the Iraqi government, allied Shia militias or US-backed Kurds would provide perfect propaganda for insurgents in a fragile post-war Iraq.

What can the Iraqi government and its allies do to break this cycle of insurgency, or avoid sliding into total sectarian warfare in the absence of a common enemy? As a matter of urgency all groups opposed to Daesh must meet before invading Mosul, which the US can help facilitate. Religious communities and tribal leaders in and around Mosul need a platform on which to correspond and cooperate before hostilities are further entrenched. The Iraqi government also needs to set a precedent of much lower tolerance for Shia militia brutality. The recapture of Mosul is a critical time for the state to demonstrate post-ISIS Iraq is inclusive and even handed, robbing any Sunni extremist insurgency of the chaos it needs. Addressing Iraq’s long-term security issues requires strong leadership, cool-headed pragmatic decision making and a long-term outlook. At the moment, all are in dangerously short supply.