This is shaping up to be an interesting war; on one side we have Jihadists with limited weaponry but highly motivated and willing to die for their cause. On the other side we have a world class high tech military reluctant to engage the Jihadists for fear of losing its troops in combat or killing non combatants.

So the battles is about means (the ability to win) verses motivation (the desire to win).

Iraqi Forces Battle ISIS West Of Baghdad.