A striking characteristic of modern Europe has been the extreme fluidity of its populations. Whether trying to escape war and persecution or to find a better life, whether moving from the countryside to the city, or between countries, migrants have stood at the heart of the continent's experience. Peter Gatrell's powerful new book is the first to bring together all these stories into one place. He creates a compelling narrative bracketed by two nightmarish periods: the great convulsions that followed the final defeat of the Third Reich and the mass attempts in the 2010s by migrants to cross the Mediterranean into Europe. The Unsettling of Europe is a new