After the outbreak of the Balkan Wars 1912 , Tucović was mobilized in the Serbian Army and participated in the Serbian military campaign in Albania . He sent letters from the front about war crimes against Albanian population which were regularly published in the Worker 's Newspaper ( '' Radničke novine '' ) . After returning from the Balkan war , he published '' Serbia and Albania '' in which he criticize the militaristic policy of the Serbian bourgeoisie : Some consider the book to be " among the most important Marxist contributions on the national question in the Balkans "
war crimes against Albanian population
Massacres of Albanians in the Balkan Wars
Serbia and Albania