Complex sentence: When war erupted in Croatia, Politika promoted Serb nationalism, hostility towards Croatia, and violence, on 2 April 1991, Politika's headline was "Krajina decides to join Serbia", one of Politika's stories was "Serbian unity--saving Krajina".
Split into simpler sentences: When war erupted in Croatia, "Politika" promoted Serb nationalism, hostility towards Croatia, and violence, and on 2 April 1991, the newspaper's headline read "Krajina decides to join Serbia". One of the newspaper's stories was "Serbian unity--saving Krajina".