Turkey, Iran and Russia entered Syria for different reasons and generally supported the Iran backed Assad governments. February 17, 2021: China and Russia have agreed, after more than a year of negotiations, to develop a joint BMEW (Ballistic Missile Early Warning) system. February 8, 2021: Russia reported that another of their Syrian Arab mercenaries had died in Libya, bringing the total dead to eight, with over 30 wounded or injured. January 20, 2021: Russia now has an armed Predator-type UAV called Orion. Russia may eventually join this coalition if China revives it territorial claims against Russia.

Source: Libya Today February 24, 2021 11:03 UTC