2008 war is more complicated than that, georgia was not being significantly armed but it was mislead by west. serious conflict between russia and georgia started in 2006 when georgia banned fsb operatives from operating within georgia, in retaliation russia exiled georgian citizens from russia and closed import/export. what followed was escalation between separatists in tskhinvali and georgia for the next 2 years. after that russia started to amass military columns in the border of georgia, georgia decided to enter separatist region and blow up the tunnel that goes through caucasus which would prevent russia from being able to transport any heavy machinery in georgia. when georgia reached the tunnel west said that they will not close the skies, simultaneously russia called and said that if georgia was to blow up the tunnel russia would level all georgian citizen.  at that point even though georgia could secure separatist regions and military was literally at the tunnel president decided to back off because if they blew up the tunnel they would secure separatist region but there would be no way to prevent entire georgia from being carpet bombed without western jets closing the sky. this resulted in georgian army going back out and russian military moving in and establishing a new military base now in disputed georgia, so a pretty bad result.
Georgia