Latvia's former president, Vaira Vike-Freiberga, is shown here at a NATO summit in 2006. During her presidency, Latvia joined both NATO and the European Union in 2004. ROMAN KOKSAROV/AP hide caption

itoggle caption ROMAN KOKSAROV/AP

A column of Russian troops prepares to leave the checkpoint at a bridge over the Inguri River in Western Georgia, in October 2008, after securing the secession of Georgia's breakaway South Ossetia region. Levan Gabechava/Reuters/Landov hide caption

itoggle caption Levan Gabechava/Reuters/Landov