“What is the goal?”
To protect the petrodollar - same as Iraq and Libya.
Yes, the favored French and British (and US) pipeline running overland..vs. other possibilities. Our supposed “interests” vs. what the russians want. Whose civil war is this— syria is a friend to Iran (and thus was helpful to US against the Baathists in Iraq, and Saddam, all to the wishes of that Saud government), and syria is a Russian client state.
Israel— wants the Syria more in keeping with the new Saud hegemony rather than the Iranian Hamas/Hezbollah variety.