All these hostilities broke after Georgians launched a surprised attack on THURSDAY.
Russians are involved as they were the peacekeepers and are demanding that Georgian troops revert back to the status quo positions before THURSDAY.
It seems highly likely that maps will be redrawn and Russia will not accept anything less then a recognized and soverign South Assetia. Something Georgia wanted to avoid at all costs.
I guess their adventure went drastically wrong.
No, the current fighting started on August 1st, & there had been one or two previous incidents, e.g. an attack on the head of the administration of the Georgian-controlled parts of S. Ossetia on July 3rd by a remote-controlled mine. There was a brief - very brief - ceasefire midweek, but fighting had resumed before the Georgian attack on Tskhinvali on Thursday.
Notionally, the peacekeeping force was made up of equal numbers of Russians, S. Ossetians, N. Ossetians, & Georgians. The Georgians claim they were reacting to provocations by S. Ossetians, including the killing of some Georgian members of the peacekeeping force.
But yes, it has gone drastically wrong for Georgia.