Permanent Representative of the Republic of Poland to the UN 

Graduated in 1972 from the Institute of History of the Nicolaus Copernicus University in Toruń, where he later worked as an assistant. Until 1996, worked as an assistant professor and associate professor of the Institute of History. From 1994 to 1997, and again from 2005 to 2008, was a professor at the George C. Marshall Center for Security Studies in Germany .
From 1991 to 1992, served as director of the Office of Research at the Chancellery of the Lower Chamber of Parliament and Undersecretary of State in the Ministry of Defence. In 1998, for two years, served as Secretary of State in the Ministry of Foreign Affairs. From 2000 to 2005, was assigned as Ambassador of the Republic of Poland to the United States. In 2008, for one year, again served as Deputy Foreign Minister.