[5] Iran's Quds Force is a "key player" in the military intervention against ISIL[6] and its "mastermind" commander Major General Qasem Soleimani maintained a frequent presence in Iraq while his pictures in the battlefield were regularly published.
[7][8] In 14 March 2016, two ISIL cells equipped with explosive devices were eliminated near the border by the Ground Forces of Islamic Republic of Iran Army.
[10] Supreme Leader of Iran Ali Khamenei has openly commented on the American-led intervention in Iraq and the Combined Joint Task Force: On the issue of DAESH (ISIL), they formed a coalition.
[11]Iranian official and semi-official media outlets such as state-run Iran Daily,[12] and IRGC-tied news agencies Fars[13] and Tasnim[14] frequently call ISIL as "terrorist organization" and "Takfiri".
[17] In September 2014, Iranian paper Islamic Republican quoted Hadana news reporting "ISIL designated Emir for Iran and several of his aides were arrested by security bodies".
On 3 January 2024, ISIL claimed responsibility for the Kerman bombings incident that killed close to 200 Iranian high-profile individuals at Qasem Soleimani's burial site.
[23] According to Al Jazeera, as of January 2015 "hundreds" of Iranian Sunni Kurds have crossed the Iran-Iraq border to fight ISIL, mostly joining Iraqi Kurdistan fighters also known as Peshmerga.