Washington called on Baghdad to “take actions” to protect American interests in the country after a flurry of attacks blamed on Iran-backed groups.
Tehran wields growing influence in Iraq, particularly through armed militias.
Since October 28, 10 rocket attacks have targeted areas where US soldiers and diplomats are stationed. The strikes have not been claimed but the United States has blamed Iranian-supported paramilitary groups.
US Defense Secretary Mark Esper told reporters on Monday he expressed “concern about the optics in attacks on bases in Iraq where US troops and material might be” in a call with outgoing prime minister Adel Abdel Mahdi.