In which way? Do you mean Russia is using the US to suppress Venezuela, Cuba, Syria and Iran? That would be very far fetched.

Russia isn’t losing anything by sacrificing humans & infrastructure within it’s vassal states. If anything, it’ll make it easier for them. Cuba is only in their interest due to it’s strategic location. Venezuela is useful for it’s oil. Syria is a buffer. That’s not how I see them, but strategically; that’s what they are. And by “them” & “Russians”, I don’t mean the average citizen. I mean the ones in charge. I feel like I should make that clear.