D’après les Israéliens, première participation directe des Russes aux combats, aux côtés du Hezbollah et des Syriens :
Before dawn on Thursday, Sept. 24, Russian marines went into battle for the first time since their deployment to Syria, debkafile’s military and intelligence sources reveal. Russian Marine Brigade 810 fought with Syrian army and Hizballah special forces in an attack on ISIS forces at the Kweiris airbase, east of Aleppo.
▻http://www.debka.com/article/24902/Russian-marines-join-Hizballah-in-first-Syrian-battle-%E2%80%93-a-danger-sign