As the Syrian Democratic Forces (SDF), backed by the international CJTF–OIR coalition, defeated the Islamic State of Iraq and the Levant (ISIL) in a number of campaigns during the Syrian Civil War, thousands of ISIL members were captured and detained at several facilities throughout the Autonomous Administration of North and East Syria. One of the most secure detention centers for ISIL members is the Dêrik prison in al-Malikiyah, a town near the Iraq-Syria border, where about 400 ISIL fighters were held. These included many international jihadists, including 20 French citizens, some of whom had been involved in the 2012 Toulouse and November 2015 Paris attacks. The French detainees are believed to have been among the chief organisers of the prison escape.