World War I casualties
Casualty statistics for World War I vary to a great extent; estimates of total deaths range from 9 million to over 15 million. Military casualties reported in official sources list deaths due to all causes, including an estimated 7 to 8 million combat related deaths (killed or died of wounds) and another two to three million military deaths caused by accidents, disease and deaths while prisoners of war. Official government reports listing casualty statistics were published by the United States and Great Britain. These secondary sources published during the 1920s, are the source of the statistics in reference works listing casualties in World War I. This article summarizes the casualty statistics published in the official government reports of the United States and Great Britain as well as France, Italy, Belgium, Germany, Austria and Russia. More recently the research of the Commonwealth War Graves Commission (CWGC) has revised the military casualty statistics of the UK and its allies; they include in their listing of military war dead personnel outside of combat theaters and civilians recruited from Africa, the Middle East and China who provided logistical and service support in combat theaters. The casualties of these support personnel recruited outside of Europe were previously not included with British war dead, however the casualties of the Labour Corps recruited from the British Isles were included in the rolls of British war dead published in 1921. The methodology used by each nation to record and classify casualties was not uniform, a general caveat regarding casualty figures is that they cannot be considered comparable in all cases.
German casualties in World War II
Civilian deaths, due to the flight and expulsion of Germans and the forced labor of Germans in the Soviet Union, are sometimes included with World War II casualties. During the Cold War, the West German government estimated the death toll at 2.225 million in the wartime evacuations, forced labor in the Soviet Union as well as the post war expulsions. This figure was to remain unchallenged until the 1990s when some German historians put the actual death toll in the expulsions at 500,000 confirmed deaths listed in a 1965 German Red Cross study. The German Historical Museum puts the figure at 600,000 dead; they maintain the figure of 2 million expulsion deaths cannot be supported. However, the position of the German government, the German Federal Agency for Civic Education and the German Red Cross is that the death toll in the expulsions is between 2.0 and 2.5 million civilians. The German historian Rüdiger Overmans maintains that there are more arguments for a lower figure of 500,000 rather than the higher figures of over 2.0 million. He believes that the previous studies by the German government should be subject to critical revision and new research is needed to establish the actual number of expulsion deaths.