[WJW]

If you had a sufficiently powerful military to back up your opinion on the ownership of Moscow, then that would indeed be how it works. International law does not have courts with the same amount of power as "normal" law. If countries are at odds the options are basically a sternly worded letter, economic sanctions or military action. And, of course, the target of such action can strike back in much the same ways.

Understandably, not many countries are willing to enter hostilities with Russia.

[zero_deg_kevin]

Who on earth is Russia going to sanction that would actually experience a negative outcome from those sanctions?

What is Vlad gonna do, form a coalition with Belarus and Iran to…inconvenience Europe?

[WJW]

Russia does not really need to sanction anyone at the moment, they already have Crimea under their control and no country with a strong enough military cares enough to take it away from them and give it back to the Ukraine.