The issue of the research, finding war criminals for the crimes committed by Hungarian invaders in the territory of Yugoslavia, especially in Backa, in January 1942, had burdened relations between the two countries since the fall 1944. However, only at the end of the following year, this issue raised to the interstate level, i.e. a decision of Anti-Hitler coalition started to be implemented, which prescribed that the war crimes would be tried in the countries where they had been committed. The text explains important documents which authenticate that the Ministries of DFY and Hungary were willing to cooperate, especially concerning the activities on the eve of the upcoming Peace Conference.
