I was a psychology professor at Ohio State University from 1975 to 2006. I continue to write and do research in the area of peace psychology. If you're interested in peace psychology, you're welcome to download a volume I edited with Richard Wagner and Deborah Winter in 2001 (see link below).

In this volume, you'll find peace conceptualized broadly, to include not only the prevention of direct violence but also the mitigation of structural violence, an insidious kind of violence that also kills people but slowly through the deprivation of human need satisfaction.

A more recent treatment of the nature and scope of peace psychology that builds on the framework introduced in the book can be found in an issue of the Journal of Social Issues that I edited in (2006):

http://onlinelibrary.wiley.com/doi/10.1111/josi.2006.62.issue-1/issuetoc

At present, I am Series Editor of the Peace Psychology Book Series for Springer SBM, which was launched in 2007. There are eight books in print or in progress for the series, covering topics such as global conflict resolution, nonviolence, forgiveness and reconciliation, peace psychology in Asia, cultures of peace, transitional justice systems, and liberation psychology.