26th
Some Background…
There are two ethnic groups that claim portions of what is now the Republic of Georgia, the Ossetians and the Abkhazians. Like the Georgians, both groups hail from the Caucasus Mountains at the eastern end of the Black Sea. When the Soviets annexed Georgia after the Russian Revolution, they created autonomous regions in Georgia for each of these groups, and those are the regions that are in dispute today.

As the Soviet Union began to break up in the late 1980s, separatists in both regions resisted becoming part of Georgia, preferring to throw their lot in with Russia.
The two ethnic regions — South Ossetia in eastern Georgia, and Abkhazia, on its western Black Sea coast — have been essentially independent since the last round of fighting in 2004. They’ve had Russian financial support and military backing in the form of Russian troops who were part of a regional peacekeeping mission. Russia has issued passports to most Abkhazians and Ossetians, so it can say that it is intervening on behalf of its own citizens.
The Beginning…
It began as a series of sniper-fire incidents and clashes between the South Ossetian militia and Georgian army troops during the first week in August. By Aug. 7, Georgian President Saakashvili was charging that the South Ossetians were using heavy weapons that had been brought into the area in violation of the cease-fire. Civilians began to flee Tskhinvali, the town that serves as South Ossetia’s capital. On Aug. 8, Saakashvili ordered Georgian troops to capture the city.
Russia responded with airstrikes on Georgian positions, not just in South Ossetia but also in Abkhazia, where Georgian troops still had a foothold in the Kodori Gorge region. Russia has said it is only seeking to restore stability to the two regions, but as its troops advanced out of the separatist regions into undisputed Georgian territory, President Bush accused Russia of seeking to crush the Georgian military and trigger the overthrow of Saakashvili’s government.
—www.npr.org