PhD (Hist.) Historian and political scientist. Director of the Centre for Polish-Russian Dialogue and Understanding since 2011. Editor-in-Chief and member of the Editorial Board of the “Intersection Project”. Member of the Polish-Russian Group for Difficult Matters since 2008. Director of the Polish Institute of International Affairs (2007-2010) and the head of PISM’s Research Office in the years 2002-2007. He was an Editor-in-Chief of the Russian language quarterly “Evropa” as well as the bi-monthly “Polish Diplomatic Review”. Author of books (“Between Berlin and Moscow: German-Soviet Relations, 1939-1941”, which won the Klio and as well as an award from “Eastern Review”) and articles as well as several collections of sources for history of diplomacy.