After the outbreak of the Balkan wars 1912 , he 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 civil population which were regularly published in the Worker 's Newspaper . Writing of the massacres of Albanians during the Serbian takeover of Kosovo from Turkey ( 1912 ) , he stated : After returning from the Balkan war , he published his influential book '' Serbia and Albania : A Contribution to the Critique of the Conqueror Policy of the Serbian Bourgeoisie '' , which analyzes the roots of Serbian-Albanian conflict and consider " among the most important Marxist contributions on the national question in the Balkans "
massacres of Albanians
Massacres of Albanians in the Balkan Wars
Dimitrije Tucović