The author thinks that war is on its way out. Systems can change very rapidly. The collapse of the ___ in 1991 (after the fall of the Berlin Wall in 1989) is a prime example of extremely rapid, unanticipated change.

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.