Final answer:
The number of children who died in the Holocaust is estimated to be around 1.5 million. This tragedy was part of the Nazi regime's plan to exterminate all Jews and certain other groups, resulting in approximately 6 million Jewish lives lost.
Step-by-step explanation:
The exact number of children who died in the Holocaust is not known due to the chaotic nature of the genocide, but it is estimated that around 1.5 million children, including Jewish children, Romani children, disabled children, and children from other targeted groups, were murdered. The murder of children was part of the Nazi regime's broader plan to exterminate undesirable populations, and many children died in concentration camps, in mass shootings, or from starvation and disease in ghettos. The Holocaust, the systematic and government-organized persecution and murder by Nazi Germany and their collaborators, claimed the lives of approximately 6 million Jews and millions from other minority groups.
The ideologically-motivated, brutal murder of approximately 6,000,000 Jews by the Nazi regime represents the horror of the Holocaust, which stands out for its shocking "success" from the perspective of the Nazis in eliminating two-thirds of Europe's Jewish population and one-third of the entire global Jewish population in such a short time period.