at the same time, the july crisis between the austro-hungarian empire and serbia broke out, which led to world war i. on 14 june 1914, milanković married kristina topuzovich and went on his honeymoon to his native village of dalj in austro-hungary, where he heard about the beginning of the war. he was arrested as a citizen of serbia and was interned by the austro-hungarian army in neusiedl am see. he described his first day in prison, where he waited to be taken to the esseg fortress as a prisoner of war, in the following words: