The Iran-backed Popular Mobilisation Forces march with flags in Baghdad, Iraq. The US Defence secretary has called on 'maxmimum pressure' on Tehran to reign in its allies and militia forces. Khalid Mohammed / AP
The Iran-backed Popular Mobilisation Forces march with flags in Baghdad, Iraq. The US Defence secretary has called on 'maxmimum pressure' on Tehran to reign in its allies and militia forces. Khalid MoShow more