and, for all of the fear that we have heard of iran increasing its influence it has helped push back isis. on behalf of the iraqi forces. what should we make of shia backed militias to retake ramadi. >> if we look at what has been going on, iranian backed shia militias have been serious fighting force on the ground. they heavily depended on them known as popular mobilization units. pmus. but the concern here is that they are not under one command. although iraqi officials would say the pmu's come under the command of the office of the prime minister. not necessarily on the, on the ground, is that the case. now this is not one group. these are different groups.