The resettlement of populations scattered by war and by enemy occupation is one of the problems with which Europe will be most urgently faced when the occupied countries are set free. Since hostilities began, millions of people have left homes destroyed or threatened with destruction; millions more have been transplanted, deported, or expelled to make room for foreign newcomers who have taken over their property; millions of others again have been taken prisoner or individually recruited as workers and sent away from their countries to serve the occupying power.

Prefatory note - The Displacement Of Population In Europe, 1943