IS apologists spread such information, it's nonsense. When Saddam massacred hundreds of thousands of people during the southern Iraq uprising in 1991 the Shia did not blow up and behead every civilian. The problem is in Sunni Islam, this is why you have your TTP beheading and massacring whenever they get the chance, whether they rule land or not is irrelevant in this case.
Collapse of the military was due to the Iraqi parliament sabotaging the military, sources of that are the 2 former ministers of defense whom are both Sunni. If you look at parliament today you will notice that corruption is being exposed, several ministers have been voted out with a no-confidence motion. Maliki did fail, but he didn't fail on Sunnis he failed on all Iraqis.
Sunnis being oppressed by the regime is a myth and cover used by IS apologists. If we look at Bahrain for the past years the minority Sunni regime has been oppressing the majority Shia population, they've killed and used force against them. They even invited foreign military forces to back them up against their own people. Yet the Shiites of Bahrain did not resort to suicide bombings and beheadings of random Sunnis, not even military/police forces.
In Yemen dozens of Arab states ganged up against locals, they've been bombing Yemenis for over a year causing many civillian casualties, recent sources stated that 1 in 3 bombings hit civillians. The US retreat military support due to this. Those are actually good examples of forced oppression.
Imagine the outrage if we were to invite Iranian troops to help out, but it's acceptable in Yemen and Bahrain? Muslims are hypocrites aren't they.
