Over 100 million people were victims of genocide and mass killings in the 20th century.

Since the Holocaust, we have often repeated “never again”, but too often the world has failed to prevent genocidal violence, making “never again” an empty slogan. The ongoing conflicts in Syria and Myanmar have ensured that genocide and mass atrocities are once again headline news.

Why do people commit genocide and kill in large numbers? How do they commit mass atrocities? What can be done to prevent and halt such conscience-shocking atrocities?