The Cold War was a global conflict and Cold War scholars are among the most international of academic communities - research on this time period is a collaborative effort of scholars from all over the world. This seven-part series is a cooperation of the Berlin Center for Cold War Studies and the Military History Portal. The interviews were conducted by Dr. Christoph Nübel (Humboldt University of Berlin) and Dr. Klaas Voß (Hamburg Institute for Social Research). This week: Prof. Dr. Bernd Greiner, Director of the Berlin Center for Cold War Studies and Fellow at the Hamburg Institute for Social Research – Berlin/Hamburg, Germany. (In German).