The unclaimed airstrikes, likely conducted by the United States as part of US-Israeli operations against the Islamic Republic of Iran, have targeted several Tehran-allied militias in Iraq and reportedly caused significant casualties. The US has not commented on these operations, which include over 30 reported strikes on the groups, who continue to attack US forces in the region.
The Islamic Resistance in Iraq (IRI), a coalition of Iran-backed Shiite militias, claimed over a dozen drone attacks against “enemy bases in Iraq and the region” and issued statements of support for the Tehran regime in retaliation for US and Israeli strikes on Iran. The groups are also responding to unclaimed airstrikes on Iraq that have reportedly killed at least six people, including four confirmed Iraqi militiamen.
On September 17, the US State Department designated four Iran-backed Iraqi militias as Foreign Terrorist Organizations (FTOs). These groups, previously listed as Specially Designated Global Terrorists (SDGTs), have received support from the regime in Tehran and attacked US forces and interests in Iraq and across the Middle East.
Tensions in Iraq have grown in the wake of the Israeli attack on Iran on June 12. Pro-Iranian Iraqi militias have increased their threats against US forces and held rallies against the US presence in Iraq. The Iraqi government has sent security forces to Nineveh Governorate to prevent the area from being used by militias to launch rockets. In addition, several drones launched by Iran have crashed in Iraq.
Iranian-backed militias in Iraq have refrained from attacking Israel directly since the start of the war between Israel and Iran on June 13. However, there have been two unclaimed attacks on US interests in Iraq since Operation Rising Lion began, and the Iraqi groups have ramped up anti-Israeli and anti-American rhetoric, threatening US interests and mobilizing supporters through propaganda channels.
The Islamic Resistance of Iraq has carried out more than 180 such attacks against US forces in Iraq, Syria, and Jordan since October 7, 2023. The most recent attack risks drawing US forces into an offensive role in Israel’s war with Iran. Thus far, the US has attempted only to provide defensive support for Israel in the conflict.
Kataib Imam Ali is the sixth Iran-backed Shiite militia in Iraq that has been listed by the US as a terrorist organization. The group’s secretary general was previously designated for his ties to Iran’s Islamic Revolutionary Guards Corps–Qods Force and its former commander, Qassem Soleimani.
Falih al Fayyadh, the head of Iraq’s largely pro-Iranian Popular Mobilization Units (PMU), traveled to Beirut for the funeral of Hezbollah leader Hassan Nasrallah on February 23. Other senior members of pro-Iranian militias in Iraq also attended the funeral, and several militia leaders put out statements. Hezbollah-affiliated media claimed approximately 200,000 Iraqis came to Lebanon for the event, though this number is unverified.