Team

IDF BG Effie Defrin is a former Visiting Fellow at JINSA and a former participant in JINSA’s 2019 Brigadier Generals Military Leadership Education Program. Since March 2025, BG Defrin has been Head of the IDF Spokesperson’s Unit, serving as Israel’s

N. Nolan Judd joined JINSA as the Executive Assistant to the President & CEO after previously serving as a policy intern during his undergraduate studies. Nolan is a graduate from the University of Glasgow, where he graduated with a M.A.

Blake Johnson is the Communications Director for the Jewish Institute for National Security of America. Blake has more than 17 years of media and communications experience in Washington, D.C., having worked at think tanks, public affairs firms, and television and

Yoni Tobin is a Senior Policy Analyst at JINSA. Yoni holds a B.A. in International Relations, with honors, from Boston University and an M.A. in International Security Policy from Columbia University. He previously worked at the Center for Naval Analyses,

Joshua Katzen is the president of Heller Property Management LLC,  a commercial real estate firm in Cambridge, MA. He has been involved with pro-Israel advocacy and conservative politics for over forty years, including as a founding leader of CAMERA (Committee

Lieutenant General (Ret.) Jay B. Silveria is the Executive Director of Texas A&M University’s Bush School of Government & Public Service in Washington, DC. Appointed to the position by Bush School Dean Mark Welsh III in September 2020, Silveria brought

VADM Harward is a JINSA 2022 General and Admirals Program participant and a member of JINSA’s Iran Policy Project. VADM Harward is Shield AI’s Executive Vice President for International Business and Strategy, where he brings his expertise and energy to

Leon Ellman is Chairman of the JLE Group, a private equity investment and management and investment consulting firm based in Fort Lauderdale, Florida. He is also a partner in Ellman Family Vineyards in Napa, California. Previously, Leon was Founder and

GEN Palumbo involvement in JINSA includes participating in our 2021 General and Admirals Program to Israel, a member of our Gaza Assessment Policy Project and was Senior Mentor on our 2022 U.S. Military Leaders Program trip to Israel. LTG Palumbo