It is safe to assume that it was first and foremost the racialized aspect of the German war in the East and its colonization policies that accelerated violence like that described in taped POW conversations and shown in the rape photograph.
This example of racialized warfare is similar to the example of the violence against indigenous women by the colonizers during the time of contact. This reminded me of the discussion of how the colonizers would refer to land as parts of a woman's body, linking together conquest of indigenous land with violence against indigenous bodies. Both that example and this passage highlight notions of power over a certain racialized group.