We can talk about a long list of causes and circumstances that led to the rapid collapse of the Iraqi forces in Mosul and other cities. We can also discuss the internal and external factors that enabled the groups affiliated with the Islamic State of Iraq and al-Sham (ISIS) to enter Iraqi cities without any real resistance from security forces.
This is all being investigated by the media, but a central point is being neglected: the position of the local population in Mosul and the majority of other Sunni regions concerning all of these events.