On 1 October 2018, under the code name Operation Strike of Muharram (), Iran's Islamic Revolutionary Guard Corps (IRGC) conducted missile and drone strikes against the Islamic State of Iraq and the Levant based east of the Euphrates river in Syria in retaliation to the Ahvaz military parade attack the previous week. Background Attacks The attack was carried out on 1 October 2018 at 2 a.m. local time. It was coordinated with Syria and Russia, according to a field commander in the region. The Islamic Revolutionary Guards Corps declared that its Aerospace Force has launched multiple missiles against an Islamic State of Iraq and the Levant headquarters but did not specify the number. The Quds Force was also involved in this operation by providing intelligence. Missile strikes Fars News Agency reported that a total of six ballistic missiles were fired, of Zolfaghar and Qiam types. The IRGC did not reveal from where they had fired the missiles, though disclosing that they flew 570 kilometers. A video of launching missiles was aired by the state television of Iranian, with the reporter saying that the launchers were located somewhere in the Kermanshah Province. The imagery shown also suggested the missiles flew over Iraq near Tikrit. At least one missile was adorned with the slogans "death to America," "death to Israel" and "death to al Saud". An American defense official told CNN that through satellite surveillance, they were closely watching mobile missile launchers that were moved to fire the missiles that landed three miles away from U.S. military. Mobile videos posted on social media showed one of the missiles falling on the ground shortly after launch. Houshang Bazvand, governor of Kermanshah Province, denied that a missile struck the ground. Drone strikes A field commander of an Iranian-backed group in the area who spoke to The New York Times on the condition of anonymity, said shortly after the missiles struck Iranian drones fired some rockets at the target. A Fars News Agency report also said seven drones were launched to hit the position. According to Farzin Nadimi of The Washington Institute, Saegheh UAVs (a smaller version of Simorgh), which carry Sadid electro-optically guided bombs, were used in the attack. He also mentions that the UAVs may have taken off from Shahid Karimi base located near Kashan, where it is known that they are in service and the target would be within range. Casualties Following