Shortly before the siege of Raqqa began in June, Islamic State officials arrested Hammad al-Sajer for skipping afternoon prayers. Hammad, who is 29, made a living from his motorbike: he carried people and packages, charging less than the local taxis. IS had arrested him a number of times before – mostly for smoking cigarettes, which were banned under IS rule – but he had always been released after paying a fine or being lashed. Attendance at prayers was compulsory and he had missed the Asr, the afternoon prayer, because a passenger had made him wait while he went into his house to get money for his fare after a trip to Raqqa’s old city. Hammad expected to be fined or lashed, but this time he was sentenced to a month in prison. Except it turned out not to be prison. On his first morning, ‘militants blindfolded us and took us in a vehicle to a place that seemed to be inside the city because it took no more than ten minutes to get there.’Hammad and the other prisoners, all of them local men, were taken to an empty house. In one of the rooms there was a hole in the floor. Rough steps led down about sixty feet before the tunnel flattened out into a corridor, which was connected to a labyrinth of other tunnels. A fellow prisoner, Adnan, told Hammad that IS had started work on what was effectively a subterranean network a year and a half earlier. In other words, construction began in 2015, after IS’s spectacular run of victories ended and it started its long retreat in the face of Kurdish offensives backed by coalition firepower. To escape the aerial bombardment, IS decided to disappear underground, digging immense tunnel complexes underneath its two biggest urban centres, Mosul in Iraq and Raqqa in Syria, to help it defend itself when the final assaults came.
Source: Patrick Cockburn · Underground in Raqqa · LRB 19 October 2017