When I got to work this morning I asked my colleagues what they thought of Russia invading Georgia. Much to my chagrin, they didn't know Georgia was a country and thought I was making a strange joke about Russians in Atlanta. No, its true, Russia did invade Georgia in attempt to back up their peace keeping forces which have been trying to keep Georgia from wiping out separatist South Ossetia. These peace keeping forces have recently come under Georgian attack and this invasion is Russia's response. As someone who has studied the area and history of this conflict for years it hardly surprises me. I do find it interesting that most of the articles discussing this matter are quoting ex-President current Prime Minister Putin rather than President Medvedev. Seems like Putin is retaining a good deal of power. Here is some non-CNN coverage in case you are interested. I have linked to English versions only which limited my choices.
Pravda.ru - Russian newspaper, Pravda is the Russian word for truth, take that as you want.(English version)
BBC - I like their timeline of events, which to those unfamiliar with the area helps set the stage on why things are happening.
1991-92 S Ossetia fights war to break away from newly independent Georgia; Russia enforces truce
2004 Mikhail Saakashvili elected Georgian president, promising to recover lost territories
2006 S Ossetians vote for independence in unofficial referendum
April 2008 Russia steps up ties with Abkhazia and South Ossetia
July 2008 Russia admits flying jets over S Ossetia; Russia and Georgia accuse each other of military build-up
7 August 2008 After escalating Georgian-Ossetian clashes, sides agree to ceasefire (which Georgia violates)
8 August 2008 Heavy fighting erupts overnight, Georgian forces close on town of Tskhinvali