Two displaced Polish children, Leon and Janina Waszczuk, are given soup by a British Army soldier soon after their arrival at No.17 Displaced Persons Assembly Centre located in Hamburg Zoological Gardens following the German defeat. Their mother Władysława stands behind them. Between 11 million and 20 million people were displaced in Europe alone by the war. The majority were inmates of concentration camps, labor camps and POW camps that were freed by the Allied armies. In portions of Eastern Europe, both civilians and military personnel fled their home countries in fear of advancing Soviet armies. Allied military and civilian authorities faced considerable challenges in resolving the problem of displaced persons. Since the reasons for displacement varied considerably, the Supreme Headquarters Allied Expeditionary Force classified individuals into a number of categories: evacuees, war or political refugees, political prisoners, forced or voluntary workers, Organization Todt workers, former forces under German command, deportees, intruded persons, extruded persons, civilian internees, ex-POWs, and stateless persons. Hamburg, Germany. 18 May 1945. Image taken by British Army Sgt. J. Mapham, No. 5 Army Film & Photographic Unit.