(18.10.2017) Tactics of ISIS, Hayat Tahrir al-Sham, and other violent extremist groups include the use of suicide bombers, kidnapping, small and heavy arms, improvised explosive devices, and chemical weapons. They have targeted major city centers, road checkpoints, border crossings, government buildings, shopping areas, and open spaces, in Damascus, Aleppo, Hamah, Dara, Homs, Idlib, and Dayr al-Zawr provinces.