Russian pledge to Palestine has nothing to do with humanitarian concerns. Russians never delivered food or other humanitarian supplies to Palestinian refugee camps, but look for “security cooperation” with Palestinians. In plain English, Russians seek a military foothold at Israeli borders. To that end, they pledged ten MIG-29 jets to Lebanon’s Hezbollah government free, and build a mammoth navy base in Syrian port of Tartus. The navy base will host S-300 and later S-400 anti-aircraft defense which would protect most of Syria against Israeli reprisals. Under the Russian ABM umbrella, Syria can develop its nuclear weapons without fearing Israeli preemption.
Okay, so, what's wrong with that?