Diplomacy and Military Fellows
Each year, the Institute for the Study of Diplomacy (ISD) hosts a roster of experienced diplomatic and military practitioners who develop bespoke courses based on their global perspectives and the issues they have personally grappled with.
ISD fellows teach an undergraduate or graduate course each year, and collaboratively teach the Diplomatic and Military Statecraft course each fall.
2026-2027 Diplomatic fellows
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Ambassador (ret.) Elizabeth RichardDistinguished Resident FellowAmbassador Elizabeth Richard was sworn in December 29, 2023, as the Coordinator for Counterterrorism with the rank and status of Ambassador-at-Large, leading… -
Ambassador John BassDiplomatic FellowAmbassador John Bass is a retired career member of the Senior Foreign Service. Former ambassador to Turkey, he most recently, he served as Acting Under… -
Ambassador Ya’el LempertDiplomatic FellowAmbassador Yael Lempert is Vice President for Outreach at the Middle East Institute. A career member of the Senior Foreign Service with the rank of Career… -
Vincent D. SperaDiplomatic FellowVincent Spera is a retired career member of Senior Foreign Service, with deep expertise in African affairs. From 2024-26 he served as Deputy Assistant… -
Ambassador Andrew YoungDiplomatic FellowAmbassador Andrew Young is a retired career member of the Senior Foreign Service with the rank of Career Minister. Most recently, he served as Director of… -
Ambassador Daniel RosenblumDiplomatic FellowAmbassador Daniel N. Rosenblum is a retired career member of the Senior Executive Service. Most recently, he served as U.S. Ambassador to Kazakhstan… -
Ambassador Michael RatneyDiplomatic FellowMichael Ratney served for over three decades as a distinguished U.S. diplomat, most recently as the U.S. Ambassador to the Kingdom of Saudi Arabia. Ratney… -
Dr. Joseph YackleyDiplomatic FellowDr. Joseph Yackley is a career Foreign Service Officer, inspired by the promise of diplomacy to forge peace, promote prosperity, and advance human rights. In…
2026-2027 Defence fellows
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Michael GatesAffiliate Defense ScholarMichael Gates retired from the US Army in 2026. He grew up in Fincastle, Virginia, graduated from West Point in 2000 with a Bachelor of Science, and was…
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David KogonAffiliate Defense ScholarLieutenant Colonel (LTC) David R. Kogon is a strategist in the U.S. Army. He was commissioned as an Infantry Officer in 2004, and later transitioned to…
2025-2026 Diplomatic fellows
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Jennifer DavisDiplomatic Fellow -
David HolmesDiplomatic Fellow -
Donald LuAdjunct Professor
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Mustafa M. PopalDiplomatic Fellow -
Jeffrey ReneauDiplomatic Fellow -
Dr. Joseph YackleyDiplomatic Fellow
2025-2026 Military fellows
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Colonel Andrew MarshMilitary Fellow -
Colonel Peter WaltherMilitary Fellow -
Lieutenant Colonel Jonathan BarbeeMilitary Fellow -
Lieutenant Colonel Joshua CrockettMilitary Fellow -
Commander Casey OswaldU.S. Navy Fellow