If Iranian drones in Iraq are new to you, please make you sure have read Adam Rawnsley articles on this subject (1).
Since the Fall of Mosul one year ago, Iran is fully committed to the Iraqi government in his anti-"Islamic State" organization fight. On the ground, the army of the Guardians of the Islamic Revolution (IRGC) advisors were dispatched on various fronts to support Iraqi security forces. On the air, Iranian air force occasionally bombed Islamic State positions in Diyala & Salahuddin provinces (2). Iranian drones also joined the battle in the early July 2014 (3). While it's still unclear if the drones are operated by Iranian operators, it's now well known that Iranian made drones are used under Iraqi flag (4) or directly by Popular Mobilisation units (5).
