The August 2008 Russo-Georgian War, also known as the Russian invasion of Georgia, was a war waged against Georgia by the Russian Federation and the Russian-backed separatist regions of South Ossetia and Abkhazia. The fighting took place in the strategically important South Caucasus region. It is regarded as the first European war of the 21st century.
Following the 1991 Georgian independence referendum, the Georgian Soviet Socialist Republic declared independence as a sovereign state amidst the dissolution of the Soviet Union. A year later, the South Ossetia war and the Abkhazia war resulted in Georgia's partial loss of territory in what had been the South Ossetian Autonomous Oblast and the Abkhaz Autonomous Soviet Socialist Republic, respectively, to two internationally unrecognized separatist movements that were supported by the newly independent Russian Federation. A series of ceasefire agreements brokered by Russia in 1992, 1993, and 1994 resulted in the establishment of the "Joint Control Commission" in South Ossetia, but Georgians were ethnically cleansed from Abkhazia by 1998. In 2000, Vladimir Putin became Russia's president, while Georgia experienced the Rose Revolution in 2003 and moved towards forging closer ties with the United States and NATO. Consequently, Georgia–Russia relations deteriorated rapidly by 2006 and spiralled into a diplomatic crisis by 2008.
On 1 August 2008, the Russian-backed South Ossetian forces started shelling Georgian villages, with a sporadic response from Georgian peacekeepers in the area. Intensifying artillery attacks by the South Ossetian separatists broke a 1992 ceasefire agreement. To put an end to these attacks, Georgian army units were sent into the South Ossetian conflict zone on 7 August and took control of most of Tskhinvali, a separatist capital and stronghold, within hours. Some Russian troops had illicitly crossed the Georgia–Russia border through the Roki Tunnel and advanced into the South Ossetian conflict zone by 7 August before the Georgian military response. Russia falsely accused Georgia of perpetrating "genocide" and "aggression against South Ossetia"—and launched a full-scale land, air and sea invasion of Georgia, including its undisputed territory, on 8 August. Russia called the offensive against Georgia a "peace enforcement" operation and fought Georgian troops in and around South Ossetia for several days together with separatist forces, until Georgian forces retreated. Russian and Abkhaz forces opened a second front by attacking the Kodori Gorge held by Georgia, while Russian naval forces blockaded part of the Georgian Black Sea coastline. The Russian air force attacked civilian targets both within and beyond the conflict zone. This was the first war in history in which cyber warfare coincided with military action. An information war was also waged during and after the conflict. Nicolas Sarkozy, the President of France, personally negotiated a ceasefire agreement on 12 August.
During the war, the Georgian cities Zugdidi, Senaki, Poti, and Gori were temporarily occupied by Russia, and Georgians were ethnically cleansed from South Ossetia. On 26 August 2008, the Georgian government severed diplomatic ties with Russia after the latter recognized Abkhazia and South Ossetia as independent sovereign states. The war displaced approximately 192,000 people across Georgia. In 2012, Putin admitted to a delegation of journalists that the Russian government had prepared an actionable plan to invade Georgia in 2006–2007 and that "it is no secret" that the Russian military provided training to South Ossetian separatists. In 2021, the European Court of Human Rights ruled that Russia's maintenance of "direct control" over the two separatist regions meant that it was legally responsible for the grave human rights violations occurring there. In 2022, the International Criminal Court issued arrest warrants for Mikhail Mindzaev, Hamlet Guchmazov, and David Sanakoev, who are all charged with committing war crimes against the Georgian people in August 2008. In 2025, the European Court of Human Rights ordered Russia to pay €253 million in damages to more than 29,000 Georgian victims suffering from the adverse effects of Russian military occupation.
In the 10th century AD, Georgia for the first time emerged as an ethnic concept in the territories where the Georgian language was used to perform Christian rituals. After the Mongol invasions of the region, the Kingdom of Georgia eventually was split into several states. In the 19th century, the Russian Empire gradually took over the Georgian lands. In the aftermath of the Russian revolution, Georgia declared independence on 26 May 1918.
The Ossetians are indigenous to North Ossetia, located in the North Caucasus. Controversy surrounds the date of Ossetian arrival in Transcaucasia. According to one theory, they first migrated there during the 13th and 14th centuries AD, and resided alongside the Georgians peacefully for hundreds of years. In 1918, conflict began between the landless Ossetian peasants living in Shida Kartli, who were affected by Bolshevism and demanded ownership of the lands they worked, and the Menshevik government-backed ethnic Georgian nobility, who were legal owners. Although the Ossetians were initially discontented with the economic stance of Tbilisi authorities, the tension shortly transformed into ethnic conflict. Ossetian insurgents repelled the Georgian troops in 1918 and proceeded to occupy the town of Tskhinvali and assault the Georgian natives. During uprisings in 1919 and 1920, the Ossetians were covertly supported by Soviet Russia, but even so, were defeated.
The independent Democratic Republic of Georgia was invaded by the Red Army in 1921 and a Soviet government was installed. The government of Soviet Georgia created an autonomous administrative unit for Transcaucasian Ossetians in April 1922, called the South Ossetian Autonomous Oblast. Historians such as Stephen F. Jones, Emil Souleimanov and Arsène Saparov believe that the Bolsheviks awarded this autonomy to the Ossetians in exchange for their help against the Democratic Republic of Georgia, since this area had never been a separate entity prior to the Russian invasion.
Nationalism in Soviet Georgia gained momentum in 1989 with the weakening of the Soviet Union. The Kremlin endorsed South Ossetian nationalism as a counter against the Georgian independence movement. On 11 December 1990, the Supreme Soviet of Georgia, responding to South Ossetia's attempt at secession, annulled the region's autonomy. A military conflict broke out between Georgia and South Ossetian separatists in January 1991. Georgia declared its restoration of independence on 9 April 1991, thus becoming the first non-Baltic state of the Soviet Union to do so. The South Ossetian separatists were aided by the former Soviet military units now controlled by Russia. By June 1992, the possibility of a full-scale war between Russia and Georgia increased as bombing of Georgian capital Tbilisi in support of South Ossetian separatists was promised by Russian authorities. Georgia endorsed a ceasefire agreement on 24 June 1992 to prevent the escalation of the conflict with Russia. Georgian, South Ossetian, Russian and North Ossetian peacekeepers were posted in South Ossetian conflict zone under the Joint Control Commission's (JCC) mandate. Some, mostly ethnically Georgian parts of the former South Ossetian Autonomous Oblast remained under the Georgian control. The Tskhinvali-based separatist authorities of the self-proclaimed Republic of South Ossetia were in control of one third of the territory of the former South Ossetian Autonomous Oblast before the 2008 war, Georgia controlled another third and the rest was not controlled by anyone.
This situation was mirrored in Abkhazia, an autonomous republic in the Georgian Soviet Socialist Republic, where the Abkhaz separated from Georgia during the war in the early 1990s. By 2003, the population of Abkhazia was reduced from 525,000 to 216,000 after an ethnic cleansing of Georgians, the single largest ethnic group in the region. The upper Kodori Gorge in northeast Abkhazia remained beyond the Abkhaz separatist government's sway.