Prolonged exposure to genocide led to deeper and more consistent involvement by the soldiers. Key Themes for an Essay
The text provided appears to refer to the scholarly book by American historian Waitman Wade Beorn, published in 2014 by Harvard University Press .
Beorn utilizes a social-psychological approach, drawing on military records, survivor testimonies, and legal documents to understand the behavior of lower-level units. Chapter Overview for Structure
Soldiers used an ideological framework that equated Jews with Bolsheviks and partisans to justify mass killings as "security measures".

