Hungary, the Sudetenland, Fiume, and Georgia

I believe that the best parallel for the Russo-Georgian conflict is not the Soviet invasion of Hungary or even the German seizing of the Sudetenland.
It is my understanding that in Western political philosophy, in order to be considered the legitimate government, that government must provide the services of government, primarily security against agressive neighbors and internal criminals. Georgia has not done so in South Ossetia or Abkhazia for years. These were de facto independent countries, as I'm sure you are aware. Their peace was interrupted by Georgia for the sake of a kind of irrendentism.
This is more like d'Annunzio's occuption of Fiume in the twenties. Not a perfect analogy, but I have failed to see any concrete good provided by either the occupation of Fiume or the Georgian attempted occupation of South Ossetia.
The way I see it, the Georgians took a gamble that Russia would not get involved and lost, the same way d'Annunzio assumed that the Allies would not get involved and that Italy would annex Fiume.
The Russians are not pure as the driven snow, but the Georgians knew that Russia had assumed obligations to South Ossetia and Abkhazia prior to the conflict, and have no right to be surprised by the Russian response. Awaiting further information, I also believe the Russians are within their rights to defend these satellite states, having undertaken security obligations to these countries beforehand.