Tom Clancy's Ghost Recon

Unlike Clancy's other tactical shooter series, Rainbow Six, Ghost Recon is not based on any of his books. An ultra-nationalist regime takes control of the Russian government in Moscow, installing its leader Dmitri Arbatov as president. Russia then takes control over Ukraine, Belarus, and Kazakhstan, forming the Russian Democratic Union (RDU), a political and military alliance dedicated to recreating the former Soviet Union. (wikipedia)