d as part of the war of liberation.
So we see that group processes play an important role in the occurrence of aggression and violence. The differentiation of people into in-groups and out-groups is always a source of potential conflict. It may, in the extreme form, erupt into open group violence and aggression. Such was the case in Cambodia. The Pol Pot in-group had reinforced its aggressive responses toward out-group individuals through social learning processes of several decades. Out-group members included both Cambodians whose philosophy was different from theirs, and the numerous immigrants, chiefly Vietnamese, who came to Cambodia in the aftermath of Vietnam. The bias of the Khmer Rouge was typical: e
...