Islamic Resistance in Iraq

• Kata'ib Hezbollah
• Harakat Hezbollah al-Nujaba
• Asa'ib Ahl al-Haq
• Kata'ib Sayyid al-Shuhada

On 18 October 2023, amid the Israel–Hamas war, the Islamic Resistance in Iraq began waves of attacks on U.S. bases in both Iraq and Syria, beginning with the launching of a drone strike on al-Asad Airbase which was intercepted.

On 24 October, the Islamic Resistance in Iraq claimed responsibility for multiple drone strikes on US bases in eastern Syria, notably al-Omar oil field in Deir ez-Zor Governorate and al-Shaddadi in the Al-Hasakah Governorate.

On 5 November, the Islamic Resistance in Iraq issued a warning ahead of Antony Blinken's visit to Baghdad, saying "Antony Blinken, the son of a Jew, is not welcome in Iraq." As a result of the threats, Blinken wore a bulletproof vest when landing in Baghdad International Airport.^{[citation needed]}

On 9 November, US forces were struck three separate times in 24 hours, including drone strikes in Al-Asad Airbase and Al-Harir Air Base, as well as an IED attack on a patrol near the Mosul Dam.

On 20 November, eight US and coalition soldiers were injured from a ballistic missile attack, and there was minor infrastructural damage after the air base was attacked by a ballistic missile.

On 25 December, the Islamic Resistance in Iraq claimed responsibility for a drone attack on the base which injured three US soldiers, one being critical.

On 18 January 2024, the Islamic Resistance of Iraq claimed it shot down a US MQ-9 Reaper drone after it took off from Kuwait near Muqdadiyah, Diyala Governorate.

On 20 January 2024, the group claimed a missile attack on the Ain Al-Asad Air Base in Al Anbar Govenorate, injuring two US personnel and one Iraqi personnel.

On 28 January, the IRI launched a drone attack on the Tower 22 US military outpost in Rukban, Jordan, killing 3 US soldiers and injuring 47 others.

On 4 February 2024, a drone struck a training ground in Al-Omar field in Deir ez-Zor, eastern Syria, which houses US troops, according to the Syrian Democratic Forces. Though no casualties were reported among US forces, at least seven Kurdish fighters were killed and 18 injured. The Islamic Resistance in Iraq claimed responsibility for the attack. The SDF condemned the attack, and said it had "every right to respond".

On 1 April 2024, Abu Ali al-Askari, security chief of Kata'ib Hezbollah, said the organisation was prepared to arm the Islamic Resistance in Jordan. He declared that Kata'ib Hezbollah is ready to provide "12,000 fighters with light and medium weapons, anti-armor launchers, tactical missiles, millions of rounds of ammunition, and tons of explosives" to "defend the Palestinians and avenge the honour of Muslims." On the same day, al-Tanf garrison in Syria was attacked by a one-way attack drone which was intercepted. Shortly after this announcement, a Jordanian militant attacked an IDF patrol vehicle near the Jordanian-Israeli border and fled. This was the first instance of an attack from Jordan on Israel since the beginning of the war.

Since November 2023, the Islamic Resistance in Iraq has claimed responsibility for drone and missile attacks against targets within Israel in retaliation for Israeli attacks on Palestinian civilians in Gaza. The group stated it would continue to "strike enemy strongholds."

In late January, the Islamic Resistance of Iraq announced it had entered its second phase of operations which included blockading the Mediterranean maritime routes to Israeli ports and disabling the ports.

On 9 January, the Kata'ib Hezbollah spokesperson Jafar al-Husseini warned that the Islamic Resistance in Iraq would help Hezbollah fight Israel if war erupted between the two sides. This statement came a few weeks after the Islamic Resistance in Iraq claimed responsibility for a drone attack on a Karish rig which Lebanon claims to hold sovereignty to.

In Iran's missile and drone strikes against Israel, the Islamic Resistance in Iraq had contributed to the attacks on Israel, alongside Iran, the Yemeni Houthis, and an unidentified faction in Syria. This was by their launch of drones and missiles at targets in Israel. The United States, United Kingdom, and Jordan intercepted many of the drones but many did hit various locations within Israel and the occupied Golan Heights.

In response to alleged Israeli bombardment of Popular Mobilization Forces bases in Iraq, which killed a soldier and injured several others, the Islamic Resistance in Iraq claimed a drone attack targeting Eilat.

On 11 January, the Islamic Resistance in Iraq said that if Yemen is attacked by the US and UK, "we will attack the Americans' base with everything in our power". After the initial US-UK airstrikes on Yemen, there were reports of a bomb and sirens being heard at the US Embassy in Iraq. In the same month, the Islamic Resistance in Iraq launched a drone attack on a US base in Jordan, killing three US soldiers and injuring 47 others.

On 21 November, a US AC-130-gunship struck a Kata'ib Hezbollah vehicle near Abu Ghraib, Iraq in response to the Islamic Resistance In Iraq's 20 November attack on Ain al Assad Airbase.

On 2 February, the US launched retaliatory airstrikes targeting Iran-backed militias in Iraq and Syria, in response to an attack that killed three US troops in Jordan. On 7 February, a US drone strike on a vehicle in the Mashtal neighborhood of Baghdad killed a commander of Kata'ib Hezbollah Abu Baqir Al-Saadi.

• Iranian intervention in Iraq (2014–present)