What was a major difference between the genocides in cambodia and yugoslavia?

One major difference between the Cambodian genocide and the Bosnian (aka Yugoslavia) genocide was the targets.

In Cambodia, the Khmer Rogue targeted people they identified as "new people." These "new people" were middle class city folk, who were often well educated. Common jobs among these people were doctors, lawyers, businessmen, etc. The reason the Khmer Rogue did not this group was because they were influenced by foreign countries.

On the other hand, the Bosnian genocide that took place was based around religious and territorial associations. For example, one group that was targeted in this genocide were Bosnian Muslims. This group was constantly under attack from Bosnian Serbs.