The sudden availability of cheap, remote-controlled flying machines did not escape the notice of terrorists groups. ISIL is only the latest in a long line of militant organizations that have acquired drones and attempted to modify them for their own purposes.
The Iranian-backed group Hezbollah has repeatedly used drones to probe Israel’s air defences, and the group released video last summer that appeared to show a drone dropping Chinese-made bomblets on Syrian rebels.
Al-Qaida operatives in Pakistan commissioned an avionics engineer to build small attack drones and conducted at least one successful test flight before the program was discovered by police in 2013.
There have also been plots involving drones by lone-wolf actors in the United States. In 2011, a physics graduate and model hobbyist from Massachusetts was accused of planning to launch small drones with bombs against the Pentagon and the Capitol, according to an FBI affidavit.
ISIL’s efforts so far have been comparatively crude. Beginning in August 2014, the terrorist group began using drones to gather battlefield intelligence and to document the effects of suicide bombings, often broadcasting the videos online to bolster morale, according to the report by MEMRI.
Occasionally the group would strap an explosive onto a small drone and try to land it near a military outpost, as happened in October when a booby-trapped toy aircraft exploded as Kurdish fighters were examining it near the northern city of Irbil.
Terrorist leaders last year put out appeals for scientists and engineers to travel to Iraq and Syria to work on weapons programs, including drones. In March, a group of pro-ISIL technicians used the social-media platform Telegram to discuss how common engine parts might be adapted for use in missiles or in military-style attack drones, according to transcript of the discussion provided by MEMRI.
“What does success look like?” asked one of the participants, using a nickname but describing himself as an American with a microelectronics background. “Are we talking about an actual guided missile or a drone which can drop payload?”
At least a few technical experts appear to have responded to the call. When government troops recaptured the Iraqi provincial capital of Ramadi last year, they discovered a small workshop where workers were attempting to manufacture drone parts from scratch.
Photographs from inside the facility show homemade wings and fuselage parts as well as electronics, camera controllers and gyro sensors used to control flight, according to an analysis by Conflict Armament Research, a London-based nonprofit that investigates weapons trafficking.
Similar factories built to modify commercial UAVs have been found in liberated parts of Mosul in the past few weeks, all pointing to an “increasing use by ISIS of weaponized drones,” said James Bevan, Conflict Armament Research’s executive director, using an acronym for the Islamic State.
Bevan’s analysts found that the group initially favoured small helicopter-like drones with four rotors and sufficient heft to carry a small bomb – usually a mortar shell or similar device with stabilizing fins and a point-detonating fuse built to explode on impact. But some of the more recent attacks involved fixed-wing drones of uncertain origin, U.S. officials said.
When Iraqi troops captured drone facilities in Mosul earlier this year, they discovered scores of documents detailing an elaborate procurement system for purchasing the aircraft and parts, as well as extensive procedures for altering and testing the equipment.
The records “speak to the group’s efforts to secure, modify and enhance the range and performance of its drones,” said a report by the Combating Terrorism Centre at West Point, N.Y., which published some of the documents.
When the siege of Mosul began in the fall, ISIL fighters stepped up their use of small surveillance drones to gather intelligence and showcase their efforts to defend the city, producing mini-documentaries with aerial footage of successful suicide attacks on Iraqi troops.
The shift to weaponized drone attacks began late last year and was ramping up dramatically at the time of the group’s formal announcement of the program Jan. 24.
“The army of the Islamic State has revealed its use of the unmanned aircraft weapon for the first time,” the group’s al-Naba newsletter said. It described an “aerial bombardment” of Iraqi forces around Mosul and said “most of the hits were precise, and inflicted losses in the ranks of the apostates.”
The drone attacks have become a daily threat for residents
Since then, the group’s social-media pages have carried dozens of videos showing strikes using small bombs and rockets. Not all the bombs find their targets, but the drone attacks have become a daily threat for residents in some parts of liberated eastern Mosul, Iraqi news accounts show.
Iraqi troops also have been forced to scan the skies for tiny aircraft and to take cover when they appear. Videos released by ISIL show multiple instances in which bombs were dropped close enough to Iraqi troop positions to cause injuries. Some of the footage appears to show wounded figures on the ground following the attacks, although there has been no official confirmation from Iraq of the terrorists’ claim of dozens killed and wounded.
Regardless of the actual numbers, the campaign appears to have raised the spirits of some of the group’s supporters. The Jan. 24 announcement triggered euphoric discussions on social-media platforms used by Islamic militant groups, as well as predictions that armed drones would soon be deployed elsewhere. One February 3 post on the Telegram messaging site called the early attacks “a drop in the sea.”
“The coming days will reveal a lot more, Allah permitting,” the post said, according to a translation provided by the SITE Intelligence Group, a private company that monitors jihadist websites. “After the planes, there are still a lot more surprises.”
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