The plot of the 2001 video game, Tom Clancy's Ghost Recon
It begins in 2008, with civil unrest in Russia. Ultra-nationalists have seized power in Moscow, with plans to rebuild the Iron Curtain. Their first step is clandestine support of rebel factions in Georgia and the Baltic States. Battles erupt with South Ossetian rebel forces from the north of Georgia, who are harassing the legitimate government and its allies.
The Russian government complains to the United Nations that the Americans have interfered in their affairs, and eventually they send in their army to aid the South Ossetian rebels.
After Georgia falls, the Caucasus region is vulnerable to further attacks. The Georgian government, Great Britain, Germany, and the U.S. all protest the Russian invasion, but Moscow ignores this. Russia then focuses on invading the Baltic States on Lithuania, Latvia, and Estonia.
Sound familiar?