The historian Keith Lowe, author of the best-selling The Savage Continent, discusses what happened in the aftermath of the Second World War, which left a world in ruins, tens of millions of refugees, and a slide into anarchy and chaos. As the world was slowly rebuilt, this aspect of the war was forgotten - but it had a lasting impact.

The music in this episode is from Ida Pinkert's 'Four Songs', played by the Nimrod Ensemble of Berlin as part of the Lebensmelodien project, which seeks to rediscover the lost music of composers affected by the Holocaust (www.lebensmelodien.com).