What it says on the tin. Every known SAM site, current or not, in the Caucasus region. Crimean peninsula not included, because I was making this for something that didn't require it and then realized it was a good template. That's also why there's about 200 static aircraft at various airfields.
I suggest selectively deleting SAMs you view as superfluous, as there are a LOT and I put every site I could find on there, whether there was still a SAM there or not.