Assistant professor of history Florida State University, Tallahassee, 1989—1995. Senior research scholar Woodrow Wilson International Center for Scholars, Washington, 1999—2004, senior associate History and Public Policy Project, since 2004. Research fellow Norwegian Nobel Institute, Oslo, 1998.
Guest lecturer Royal Swedish Academy of Military Science, Stockholm, 1998, Central European University, Budapest, Hungary, 1998, Marine Corps University, Quantico, Virginia, 1999, Washington and Lee University, Lexington, Virginia, 1999, John F. Kennedy Presidential Library., Boston, 1999, Colgate University, Hamilton, New York, 1999, Wisconsin Veterans' Museum, Wisconsin, 2000, Ohio University, Athens, 2001, University of Urbino, Italy, 2001, University of Rome, 2001. Coordinator, Korea Initiative Woodrow Wilson International Center for Scholars, Washington, since 2001. Guest lecturer The Gramsci Institute, Rome, 2001.
Instructor International Summer School, Pamporovo, Bulgaria, 2002. Guest lecturer Harry S Truman Library. and Museum, Independence, Missouri, 2003, The National War College, Washington, 2003, University of Tennessee, Knoxville, 2003, George Washington University, Washington, 1994, University of Maryland, College Park, 1997, Ohio University, Athens, 1997, Johns Hopkins Nanjing Center, Nanjing, China, 1997, East China Normal University, Shanghai, 1997, The Sorbonne, Paris, 1997, The University of Oslo, Oslo, 1998. Program consultant various public television stations.
Member of Society for Historians of America Foreign Relations (bernath lecture prize committee 1998—2000), Association for Asian Studies, American Association for the Advancement of Slavic Studies (member, task force on archival affairs 1994), The History Society (editorial board, the journal of the history society 1999—2004), American History Association.
1989 - 1995
1999 - 2004