Russia has invaded Georgia

Via CNN:

Georgia's president said Friday that his country is under attack by Russian tanks and warplanes, and he accused Russia of targeting civilians as tensions over the breakaway Georgian region of South Ossetia appeared to boil over into full-blown conflict.

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"This is the worst nightmare one can encounter," he said.

Asked whether Georgia and Russia were now at war, he said, "My country is in self-defense against Russian aggression. Russian troops invaded Georgia."