In the spring of 1945, the Allies liberated territory from Axis occupation. Whilst the British advanced into most of Denmark, Stalin’s Soviet forces occupied the small island of Bornholm. They remained there for 11 months, but then withdrew with little fanfare. Caroline Kennedy-Pipe is a professor of International Relations and International Security at Loughborough University. She spoke to James about her research into the Soviet occupation of Bornholm and its mysterious end.