Panorama: Behind the Balaclavas

As Ukraine moves closer to civil war, reporter Paul Kenyon spends weeks with balaclava-wearing separatists, as they seize towns and fight for a breakaway republic. He follows men who have become some of the most powerful in the conflict, including a former history teacher with a newborn baby, and a former small businessman who now finds himself leading a 200 strong army. Paul also speaks to the new Mayor of Slaviansk - who rose to power during the rebellion after taking his predecessor prisoner, and who now boasts he is holding forty hostages in the town hall's cellars.