Tabqa was the last bastion for Syrian military forces in Raqqa province, which at the end of the battle came fully under the control of the ISIL.
[5] On 17 August, the Syrian Air Force launched 26 airstrikes on ISIL-held Raqqa city and around Tabqa, killing at least 31 ISIL fighters and wounding dozens.
[8][9] According to Al Rai reporter Elijah J. Magnier, the Syrian Air Force used guided missiles following U.S. intel on ISIS gatherings.
[10] According to an anonymous source, the U.S. and an unidentified Western country provided the Syrian military with lists of ISIS targets acquired through drone intelligence.
[14] The mines were reportedly planted as part of an ambush set up by Syrian army Special Forces based on previous observation of ISIS troop movements in the area.
[20] On the evening of 22 August and following arrival of reinforcements, ISIL launched a third attempt to breach the base, starting with a suicide bombing against the airport gate.
[22] According to Al-Masdar, a Syrian army brigade later captured the M-42 highway leading to the city of Salamiyah in Hama Governorate and ended the ISIS siege on the Tabqa air base.
[34] On 28 August Syrian fighter jets launched a precise attack on an IS HQ in the city of Al-Muhasan, during a meeting between military leaders and sharia judges.
[29] Joseph Adams at Syria Direct identified the execution site 300 meters northeast of Ma'amal Al-Qarmeed, approximately 5 km east of Raqqa.