Sam Brannen

Career path.

1. OpenAI

   Geopolitics, Infrastructure Intelligence, and External Risks; Intelligence and Investigations

   Jul 2025 - Present
2. RAND Corporation

   Senior International/Defense Researcher; Director, International Security and Defense Policy Program

   Jun 2024 - Jul 2025
3. Pentagon, US Department of Defense, Office of the Secretary of Defense for Policy

   Deputy Assistant Secretary of Defense for Plans and Posture

   Apr 2021 - May 2024
4. Center for Strategic and International Studies (CSIS)

   Program Director, Risk and Foresight Group; and Senior Fellow, International Security Program

   Sep 2018 - Apr 2021
5. A.T. Kearney

   Director, Global Business Policy Council

   Jan 2017 - Sep 2018
6. A.T. Kearney

   Senior Manager, Global Business Policy Council

   Dec 2014 - Dec 2016
7. Center for Strategic and International Studies (CSIS)

   Senior Fellow

   May 2013 - Dec 2014
8. Office of the Secretary of Defense

   Special Assistant to the Principal Deputy Under Secretary of Defense for Policy

   Sep 2012 - May 2013
9. Office of the Secretary of Defense

   Country Director for Turkey, Cyprus, and Malta

   Jul 2010 - Sep 2012
10. Office of the Secretary of Defense

    Special Assistant to the Deputy Under Secretary of Defense for Strategy, Plans, and Forces

    Mar 2009 - Jul 2010
11. Center for Strategic and International Studies (CSIS)

    Fellow and Deputy Director

    Sep 2007 - Mar 2009
12. Office of the Secretary of Defense

    Strategist and Policy Planner

    Jun 2006 - Jun 2007
13. Center for Strategic and International Studies (CSIS)

    Research Associate and Assistant Director

    May 2004 - Jun 2006