Why do you think no one can still state with 100% accuracy who started the war in August 2008? Because in reality no one knows who fired first, and there is a reasonable assumption that this was done by foreign special services and then uncontrolled processes began.
Unfounded pro-Kremlin disinformation trying to deny any Russian responsibility for the Russo-Georgian war, portraying Russia as a peacemaker and blaming the West for the war which resulted in the further occupation of South Ossetia and Abkhazia by additional military forces from Russia.
Many international organisations condemned the further occupation of Abkhazia and South Ossetia, see e.g. the CSCE statement here, the Delegation of the European Union to Georgia here and the European Parliament's declaration.
The EU's independent investigative commission into the 2008 Russia-Georgian war confirmed that Russia had been provoking Georgia for a long time and "Much of the Russian military action went far beyond the reasonable limits of defence."
Currently, Russia occupies 20% of Georgia's territory, 14 years after the Russo-Georgian War, and continues to breach its international obligations by consolidating its control in Abkhazia and South Ossetia.
See related disinformation claims here.