A 29-year-old man was in the hospital on Monday after being knifed in central Thessaloniki on Sunday night during an event in the northern city commemorating the Pontic genocide, the systematic killing of ethnic Greeks by the Turks during World War I.
The attackers are believed to belong to anti-establishment groups.
From January to May this year, the Bosnian state prosecution filed just four indictments for war crimes, two fewer than in the same period in 2018.
The apparent slowdown has sparked concerns that this may cause further delays in attempts to deal with the country's enormous backlog of war crimes cases.
Religion plays an important role in the 1915 Events and the related Turkish-Armenian controversy. In the Armenian genocide narrative, Armenians are frequently portrayed as the downtrodden "first Christian nation", while Turks are portrayed as the cruel Muslims who sought to annihilate various Christian groups.