The South Caucasus region is experiencing crises that have continued for many years. Russia's war with Georgia in 2008 and the Armenian-Azerbaijani conflict over the Nagorno-Karabakh region after the collapse of the Soviet Union (1991) changed the security order in the South Caucasus. Russia has interests as a global player in the South Caucasus region and Kremlin considers it's near abroad as its backyard and exclusive sphere of influence. This article uses a descriptive-analytical method as well as the theory of regional security of Barry Buzan to answer the question of what is Russia's security strategy towards the South Caucasus region. The main hypothesis emphasizes that Russia's strategy in the South Caucasus region is to prevent securitization of the region against its economic and political interests, as well as prevent the influence and presence of NATO, in the region. The results show that in tensions with Georgia, Russia seeks to prevent Western interference and urges them to recognize the separation of Abkhazia and South Ossetia from Georgia. On the other hand, Russia's foreign policy in the face of the Nagorno-Karabakh crisis is to maintain a balance between the two parties involved, Armenia and Azerbaijan, to cooperate with both countries, and to resolve the Nagorno-Karabakh conflict by a political solution, not a military one. The purpose of this article is to examine Russia's security strategy in the South Caucasus, with a particular focus on Georgia and the Nagorno-Karabakh crisis from the beginning of the crisis until 2020. And then it offers specific reasons for the confrontation between Russia and the West, as well as Iran's role in regional security issues.