Director of the Centre for Eastern Studies (OSW) in Warsaw. His expertise extends mainly to the situation in Eastern Europe and Russia. Previously, he was deputy director and department head for Ukraine, Belarus, and Moldova. In the past, he was the coordinator of the Batory Foundation's international projects, a visiting scholar at the Wilson Centre's Kennan Institute in Washington, DC. He lectures regularly at the Diplomatic Academy, the Warsaw School of Economics. A regular commentator in Polish and international media.