>>/46843/
That's just the resonance of the Tzars age old pan-slavist propaganda, they used to gain influence over the Balkans while they wrestled their competitors (Ottos and Habsburgs).
I don't really get the last screenshot. France and UK also won two world wars, they pushing the Ukrainian cart forward however.

 >>/46844/
Now Bulgaria is different. Since she's both in the EU and NATO, there must be some expectations to denounce Russia. Tho there is a difference between official, govt. organized sympathy demonstration, and a completely civilian one.