At the end of 2000, miners from the Kolubara Mine went on strike. The coal they normally produced covered virtually half of Serbia’s energy needs. The strike forced the last Communist president of Yugoslavia and Serbia, Slobodan Milošević, to resign. While still in office, he was charged with genocide during the Kosovo War by the War Crimes Tribunal in The Hague. In reference to Wim Wenders’ Wings of Desire, Igor Grubić dedicated an entire group of works, Angels with Dirty Faces, to the miners, the 'real working heroes'.