<!doctype html public «-//w3c//dtd html 4.0 transitional//en»> http-equiv=content-type> The First World War began in the Balkans, and subsequently, fighting in the East radically transformed the political and social European order. The specifics of the Eastern war such as mass deportations, ethnic cleansing, and the radicalization of military, paramilitary and revolutionary violence have only recently become the focus of historical research.