After Russians and Iranians, the Chinese also have stepped in to help the Syrian regime under President Assad. China reportedly has dispatched troops to Syria. https://www.ibtimes.co.in/chinese-troops-join-russian-marines-syria-soon-says-report-648246 Russia, Iran, Iraq & Syria setting up ‘joint information center’ to coordinate anti-ISIS operationshttps://www.rt.com/news/316592-russia-syria-islamic-state/ So Russia, Iran, Iraq, Syria, and China are all working together. Meanwhile...the US trained/backed "moderate" rebels immediately defected to ISIS along with their military equipment.