World War I casualties
The total number of military and civilian casualties in World War I were about 40 million: estimates range from 15 to 19 million deaths and about 23 million wounded military personnel, ranking it among the deadliest conflicts in human history.
History of Germany during World War I
Out of a population of 65 million, Germany suffered 1.7 million military deaths and 430,000 civilian deaths due to wartime causes (especially the food blockade), plus about 17,000 killed in Africa and the other overseas colonies.