Peace in Bosnia is hanging in the balance. The nation is led by three presidents - and the Bosnian Serb member of the presidency, Milorad Dodik, has threatened to secede the Serb Republic from Bosnia. Meanwhile, the Bosnian Serb army has been carrying out drills, bringing back painful memories of the siege of Sarjevo. Some theorize that outside influence may be at play: 'There’s longstanding support coming from Moscow for Mr. Dodik', notes EU ambassador Johann Sattler. Meanwhile, Russian affiliated paramilitary groups have appeared in the Serb Republic: 'These organizations represent themselves as humanitarian organizations. They have very strong links with Russia', notes genocide expert Hikmet Karčić. 'Russia does not want any country of the Western Balkans to join NATO or the European Union', says Croat presidency member Željko Komšić.