The ___ one is to another person, the harder it is to kill that person. Killing from afar tends to be less traumatic. In fact, killing is so difficult that during WWII only 15-20% of the infantry fired their guns at the enemy.

Peace studies is an interdisciplinary academic field that draws on political science, sociology, history, anthropology, theology, psychology, philosophy, and other fields to:

understand the causes of armed conflict;
develop ways to prevent and resolve war, genocide, terrorism, gross violations of human rights; and
build peaceful and just systems and societies.