SARAJEVO, Bosnia-Herzegovina (AP) — An appeals court in Bosnia confirmed Friday an earlier court ruling that sentenced the pro-Russia Bosnian Serb president, Milorad Dodik, to one year in prison and banned him from politics for six years over his separatist actions as tensions mount in the fragile Balkan state.

The landmark ruling in Sarajevo came after a year-long trial that ended in February on charges that Dodik disobeyed the top international envoy overseeing peace in the country.

Dodik has repeatedly called for the separation of the Serb-run half of Bosnia to join neighboring Serbia, which prompted the former U.S. administration to impose sanctions against him and his allies. Dodik was also accused of corruption and pro-Russia policies.