On 18 June, the Syrian Army reportedly cut the road between ISIL-held towns of Al-Qaim to Al-Sukhnah, entered Deir ez-Zor Governorate from the south, while capturing large parts of the Syrian Desert from ISIL. Meanwhile, IRGC Aerospace Force bases in west Iran fired six surface-to-surface mid-range missiles targeting ISIL forces in the Deir ez-Zor Governorate. It was officially announced as a response to the terrorist attacks in Tehran earlier that month.
