In March this year, Isis published an annual report covering its activities between November 2012 and November 2013. The annual report, "al-Naba" evaluated and translated by the Institute of War Studies, divides the attacks into categories and by region.
- In 2013, the group boasted of killing 1083 people, up almost a hundred from their annual report the year before
- In 2013 the group said they managed to free "hundreds" of prisoners, whilst the year before they reported being able to free only "dozens"
- The group also said they launched 1047 "targeted attacks" such as improvised explosive devices (IEDs)
The US-based Institute for the Study of War said it was important to consider that the number of attacks could be exaggerated, but concluded:
ISIS is not simply a terrorist organization, but rather an armed insurgency moving to control terrain.
The pursuit of a controlled military campaign by ISIS in Iraq and Syria undergirds their pursuit of a transnational emirate.
This is a military enemy that requires a considered strategy, military as well as involving anti-ISIS Sunni populations, to defeat it, or it
will become a permanent fixture in the Middle East.