The governments of the German Empire and Nazi Germany ordered, organized and condoned a substantial number of war crimes in World War I and World War II respectively. The most notable of these is the Holocaust in which millions of people were systematically murdered or died from abuse and mistreatment. Millions also died as a result of other German actions in those two conflicts. The true number of victims may never be known, since much of the evidence was deliberately destroyed by the perpetrators in an attempt to conceal the crimes.
Considered to have been the first genocide of the 20th century, the Herero and Namaqua Genocide was perpetrated by the German Empire between 1904 and 1907 in German South-West Africa (modern day Namibia), during the scramble for Africa. On January 12, 1904, the Herero people, led by Samuel Maharero, rebelled against German colonialism. In August, General Lothar von Trotha of the Imperial German Army defeated the Herero in the Battle of Waterberg and drove them into the desert of Omaheke, where most of them died of thirst. In October, the Nama people also rebelled against the Germans only to suffer a similar fate.
In total, from 24,000 up to 100,000 Herero and 10,000 Nama died. The genocide was characterized by widespread death by starvation and thirst because the Herero who fled the violence were prevented from returning from the Namib Desert. Some sources also claim that the German colonial army systematically poisoned desert wells.