Slavic peoples are naive political prostitutes. This applies in every case. This is why I ultimately do not begrudge Ukrainians, for we are they and they are us. Simply that they must be gone from the Donbass, from shelling our people, and that they should tell NATO to leave as well and forever more, if peace is to be reestablished.
Reason we and the Serbs are together is not because of Orthodoxy, or history, or some sort of Slavic unity. You think that stuff means anything to the money'd elites in Moscow or Belgrade? Maybe Putin has some principles personally, but certainly our reigning oligarchs would have sold the Serbs and their own mother down the river in the 90s. In fact that's what they did.
Really if Uncle Shitsam would have treated either Serbia or Russia with more magnanimity in the 90s then that one would have said sayonara to the other for good. Hell even after 2014, Putin and co. were still hoping for some sort of integration with the West, seemingly oblivious to the fact that the Minsk agreement had been signed not in the expectation of a compromise or settlement, but that sanctions would crush Russia's economy and cause a colour revolution. All sorts of diplomacy with Macron, a loud proclamation to help the French carrier group in the Mediterranean after the terrorist attack in 2015 and the rest of this bullshit.
We're together because misery loves company, nothing else, and we both have an axe to grind against the same set of people. Russia is being targeted for destruction, while Serbia was bombed, extensively demonized, heaped war-guilt on for everything that went wrong in the former Yugoslavia, had its population ethnically cleansed and part of its territory ripped away by the same Washington elites.
It's true Russians were upset by the NATO bombing of the FRY in 1999 but then Greeks were upset, others were upset too. And people got over it even if it wasn't forgotten as such. Only because the US insisted on making an enemy of Russia as well, while never letting hold of their choke-hold on the Serbs, was it guaranteed that history would repeat and we would find ourselves on the same side of the barricades.