Final answer:
Between 35 and 40 million individuals were killed in World War II, including more than 25 million military deaths and about 55 million civilian deaths.
Step-by-step explanation:
The total number of individuals killed, military and civilian, in World War II was probably between 35 and 40 million. Military deaths were over 25 million, including 5 million prisoners of war who died in custody. The war also killed about 55 million civilians, including 28 million who died of war-related disease and famine.