As a result of Saakashvili’s activities, Georgia lost Abkhazia and South Ossetia.
A recurring pro-Kremlin narrative blaming Georgia and its political leadership for the Russo-Georgian war of 2008 which resulted in the occupation of Abkhazia and South Ossetia by Russia.
Georgia is a sovereign country attacked by Russia in 2008. Many international organizations condemned the occupation of Abkhazia and South Ossetia, see e.g. the CSCE statement here and the European Parliament's declaration.
More information about the conflict can be found on Myth Detector.