Seattle Skyline

Peace Through Prevention | Seattle, WA

Join us in Seattle for an opportunity to hear from legislators, policy experts, and thought leaders who work every day to secure the future of US national security. 

Washington State has a unique history of nuclear production and mining and houses the third-largest nuclear weapons arsenal in the world. Recognizing the local advocates who are working to change international nuclear weapons policy for the better, we are taking our 2023 program to Seattle on Thursday, October 19.

Doors open to the public at 3 p.m. PT.

Peace Through Prevention | Seattle, WA
The Georgetown Ballroom
Thursday, October 19, 3 - 5 p.m. PT
In-Person Event

Speakers (more speakers to be announced):

  • Sean Arent, Program Manager at WPSR
  • Dr. David Bachman, Professor of International Studies at the Henry M. Jackson School
  • Dr. Shampa Biswas, Chair of Political Science at Whitman College
  • Karl D'Ambrosio, a retired nuclear Navy Senior Officer at Kitsap-Bangor
  • Horie[堀江] Soh [壯], Hiroshima Hibakusha
  • Congresswoman Pramila Jayapal, US Representative from Washington's 7th Congressional District
  • Congressman Adam Smith, US Representative from Washington's 9th Congressional District
  • Sean Arent, Program Manager at Washington Physicians for Social Responsibility

Speaker Bios:

Sean Arent

Sean Arent is the Nuclear Weapons Abolition Program Manager at Washington Physicians for Social Responsibility. He grew up in Roy, Washington, in the shadow of Joint Base Lewis-McChord.



David Bachman

David Bachman the Henry M. Jackson Professor of International Studies. He was chair of the China Studies Program from 1992-2003 and Associate Director of the Jackson School from 2000-2001 and 2003-2010. His research and teaching interests are Chinese Domestic and Foreign Policy, International Political Economy, Asian Politics, International Relations, and U.S. – China Relations. He holds a Ph.D in Political Science and a Master of Arts in Political Science from Stanford University.


Dr. Emma Belcher

Dr. Emma Belcher is the President of Ploughshares Fund. Prior to arriving at Ploughshares, Emma spent nearly a decade at the John D. and Catherine T. MacArthur Foundation, where she led the foundation’s Nuclear Challenges grantmaking program. She has a background in international security. While completing her PhD, she was a fellow in the International Security Program and Project on Managing the Atom at Harvard University’s Belfer Center for Science and International Affairs.


Dr. Shampa Biswas

Dr. Shampa Biswas is an international relations theorist specializing in postcolonial theory and nuclear politics. She currently serves as the Chair of Social Sciences at Whitman College, where she is a professor of politics. She received her Masters of Arts in Economic at the University of Delhi, Masters of Arts in International Relations at the Maxwell School of Citizenship at Syracuse University, and her Ph.D. in Political Science at the University of Minnesota.


Tom Collina

Tom Z. Collina is the Senior Policy Advisor at Ploughshares Fund, with 30 years of Washington, DC experience in nuclear weapons, missile defense and nonproliferation issues. He is co-author, with former Secretary of Defense William J. Perry, of The Button: The New Nuclear Arms Race and President Power from Truman to Trump, published in 2020.


Karl D’Ambrosio

Karl D’Ambrosio is co-founder and CEO of Nursing Evolution. From 1985 to 2005, Karl served as a line officer in the US Navy Nuclear Submarine Force, retiring as a Commander. He served on fast attack and ballistic missile submarines and in a variety of shore command positions. He obtained his Masters degree in Nuclear Physics from the University of California, Berkley and his Bachelors in Mechanical Engineering from Cornell University.


Soh Horie

Soh Horie is a Hiroshima Hibakusha, an atomic bomb survivor. He was just 5 years old at the time of the Atomic bombing of Hiroshima.





Gretchen Hund

Gretchen Hund is the Former Director of Pacific Northwest National Laboratory’s (PNNL) Center for Global Security. Currently, she serves as Treasurer of the Ploughshares Fund Board of Directors. She holds a Bachelor of Arts degree in Geology from Middlebury College and a Master of Science degree in Political Science. 


Congresswoman Pramila Jayapal

Congresswoman Pramila Jayapal serves as the U.S. representative for WA-7. She serves as the Chair of the Congressional Progressive Caucus. She currently serves on the Judiciary, Budget, and Education and Labor committees. In 2016, she became the first South Asian American woman ever elected to the House.


Dr. Max Savishinsky

Dr. Max Savishinsky is the Executive Director of Washington Physicians for Social Responsibility. He brings two decades of leadership experience in the nonprofit, philanthropic, education, social services, and development sectors. He holds a Master of Public Administration, a Master of Arts in International Studies, and a Doctor of Higher Education degree from the University of Washington.


Congressman Adam Smith

Congressman Adam Smith serves as the U.S. representative for WA-9. He serves as the Democratic leader of the House Armed Services Committee. Having served on the House Armed Services Committee since 1997, he served as the Chairman of the full committee from 2019 to 2023. He formerly chaired the subcommittee on Air and Land Forces and Terrorism and Unconventional Threats and Capabilities, respectively. He also previously served on the House Foreign Affairs Committee and the House Permanent Select Committee on Intelligence.