| 1976 | graduates from the Moscow State Institute for International Affairs (International Economic Relations)
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| 1980-1985 | Attaché, Third Secretary at the Czechoslovak Embassy in Addis Ababa, Ethiopia
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| 1985-1987 | Second Secretary, Main Political Questions Department, Ministry of Foreign Affairs in Prague
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| 1987-1988 | Head of Section, Security and Arms Control, Ministry of Foreign Affairs, Prague
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| 1989-1990 | First Secretary/Counsellor at the Czechoslovak Embassy, Moscow
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| 1990-1991 | Deputy Head of the Embassy, Head of Political Section
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| 1991 | Director-General, Euro-Atlantic Section
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| 1992 | Chairman of the CSCE Committee of Senior Officials under theCzechoslovak CSCE Chairmenship
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| 1992 | Ambassador, Permanent Representative of Czechoslovakia to the UN Office, GATT and other International Organizations, in Geneva, Switzerland
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| 1993-1994 | Ambassador, Permanent Representative of the Slovak Republic
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| 1994 | Special Ministerial Envoy and Slovak Chief Negotiator on the Pact for Stability in Europe (Ministerial Meeting, Paris)
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| 1994-1998 | Director of the Conflict Prevention Centre at the Organization for Security and Co-operation in Europe, Vienna
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| 1998-1999 | Special Representative of the United Nations Secretary-General for Tajikistan and Head of the United Nations Mission of Observers in Tajikistan
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| 1999 | appointed Secretary General of the Organization for Security and Cooperation
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| 2001 | re-appointed for a second term as Secretary General |
