The First World War was started when an archduke was killed.
When a Abkazian border guard is killed by Gorgians, will a new world war be started?
No but the Georgian government might get toppled.
The Second World War started when Hitler invaded the Sudetenland (after signing a protection agreement with the local government.) Sound Familiar? It make sense from the Russian standpoint. They want to keep Georgia in their control and not NATO, and the price of their oil is down 75%. Last summer, the price of oil spiked at $150 per barrel over conserns over the oil pipeline—this time they might assume control of it, possibly as early as June or late May.