Joseph Trevithick is an Associate at GlobalSecurity.org, responsible for defense and security research and analysis. He has been interviewed on domestic and international television, radio, and in print on a number of defense and security related topics ranging from Mine Resistant Ambush Protected vehicles to the conflict in Afghanistan. He has also written print editorials on similar subjects.

Prior to joining GlobalSecurity.org in 2008, Joseph served as an intern at the Woodrow Wilson International Center for Scholars in their Cold War International History Project and with the Potomac Institute for Policy Studies in their International Center for Terrorism Studies. In 2008 he was mentioned for his assistance in the author's note of The US Army in the Vietnam War 1965-73 by Gordon Rottman, published by Osprey Publishing. In 2011, he co-authored Ambush Valley: Vietnam 1965-1975, also published by Osprey Publishing.

In May 2008 Joseph received an MA in Conflict Resolution from Georgetown University. During the program he received a certificate in mediation skills and process, as well as one in cross-cultural mediation. He graduated from Carnegie Mellon University in 2006 with a dual BA in History and Policy and International Relations.