Mosul’s fall matters for what it reveals about a terrorism whose threat Mr. Obama claims he has minimized. For starters, the Islamic State of Iraq and al-Sham (ISIS) isn’t a bunch of bug-eyed “Mad Max” guys running around firing Kalashnikovs. ISIS is now a trained and organized army.
The seizures of Mosul and Tikrit this week revealed high-level operational skills. ISIS is using vehicles and equipment seized from Iraqi military bases. Normally an army on the move would slow down to establish protective garrisons in towns it takes, but ISIS is doing the opposite, by replenishing itself with fighters from liberated prisons.
An astonishing read about this group is on the website of the Washington-based Institute for the Study of War. It is an analysis of a 400-page report, “al-Naba,” published by ISIS in March. This is literally a terrorist organization’s annual report for 2013. It even includes “metrics,” detailed graphs of its operations in Iraq as well as in Syria.