 On 19 September, nhengo dzeTahrir al-Sham, pamwe chete neTIP nemagandanga akabatana neFSA, vakatanga kurwisa nzvimbo dzakatsigirwa nehurumende uye mauto eRussia aitarisira nzira yekudzikamisa nzvimbo mudunhu reIdlib zvichitevera chibvumirano neTurkey neIran munhaurirano muAstana muna Chivabvu 2017. Mishumo yokurwisana kwakatevera yakanga ichipesana. Vapanduki vakatanga vatora misha mina, asi mushure mekurwisana kwakasiyana-siyana uko misha yacho yakachinja maoko kakawanda, mauto ehurumende akatora misha yacho yose musi wa22 September. Russia yakataura kuti yakanga yauraya vapanduki 850 musi wa 21 September. Mukupesana, SOHR yakashuma kuti vapanduki 66 nemasoja 38 vakaurawa panguva yekurwisa, pamwe nevanopfuura vanhu 40 mumazuva maviri mukurwisa kwemhepo kunosvika mazana mashanu pamaguta nemisha inosvika makumi mana mukupindura kurwisa kwevapanduki. Paivewo nezvakataurwa nevapanduki nezvekurwiswa kwehurumende neRussia nendege pazvinangwa zvevagari muIdlib, kusanganisira zvivakwa zvekurapa. Mauto emhepo eRussia neRussia Navy vakaita kurwisa nendege uye zvombo zvehondo zvinorwisa zvinangwa zveHTS, zvinonzi zvinosanganisira musasa mukuru wemauto. Dhipatimendi reHurumende reU.S. rakapomera Siria neRussia, kunze kwekurwisa mabhomba evanhuwo zvavo, kuti vari kurwisawo zvipatara. Chimwe chezvipatara zvitatu zvinonzi zvakabhombwa chaiva kiriniki yeal-Rahma muKhan Shaykhun, iyo yairapa vanhu vakaurayiwa nekurwiswa nemakemikariikoko muna April. 