- Deputy assistant for national-security affairs and director of policy planning.
- Director of Princeton's Research Program in International Security at the Woodrow Wilson School
- Acting Director of the Center of International Studies at Princeton.
- Former fellow at the Smithsonian Institution’s Woodrow Wilson International Center for Scholars, the Norwegian Nobel Institute, and Harvard University’s Center for International Affairs
- First Henry Alfred Kissinger Scholar at the Library of Congress
- One of the original signers to the 1997 Statement of Principles by the neoconservative "think tank," Project for the New American Century.
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