| Teaching and Research Positions | |
| 1998-01-2004-present | Fred J. Hansen Professor of Peace Studies |
| 2007- present | Chair,Executive Board,Hansen Summer Institute for Future Leaders |
| 2003 - present | Program Chair, International Security and Conflict Resolution |
| 2001-2004 | Research Associate, Fred J. Hansen Institute for World Peace |
| 1989 - present | Co-Director Institute for International Security and Conflict Resolution San Diego State University |
| 2002 - present | Distinguished
Professor Department of Political Science San Diego State University |
| 1977 - 2002 | Professor School of Public Administration and Urban Studies San Diego State University |
| Visiting Scholar/Fellowships | |
| 2001 | 2001
Visiting Fellow, Fudan University Shanghai, China |
| 2000 | Visiting
Fellow, The United Nations, Terrorism Prevention Branch Office for Drug Control and Crime Prevention (ODCCP) Vienna, Austria |
| 1993 | Visiting
Fellow, Center for the Study of Social Conflicts Leiden University, The Netherlands |
| 1991 | Summer
Fellow: International Relations Program Hoover Institution on War, Revolution, and Peace. Stanford University |
| 1986 | Senior
Associate Member, St. Antony's College Oxford University, England |
| Visiting
Fellow, El Colegio de Mexico Mexico City |
|
| 1976 | Post
Doctoral Research Fellowship Institute of International Politics and Economics Belgrade, Yugoslavia |
| Board Membership | |
| 2005-2007 |
Member of the Advisory Committee |
| 2001-2007 | Executive Board Member San Diego State University Research Foundation |
| 2006- |
Board Member |
| Editorial Board Member Violence and Terrorism: Annual Edition, McGraw Hill. |
|
| 1999-present | Executive Board Member Fred J. Hansen Institute for World Peace |
| 2004-present | Member Editorial Board Democracy and Security |
| 1999-2003 | Member Advisory Board International Rescue Committee San Diego Chapter |