Answer:
As Allied troops moved across Europe against Nazi Germany in 1944 and 1945, they encountered concentration camps, mass graves, and other sites of Nazi crimes. The unspeakable conditions the liberators confronted shed light on the full scope of Nazi horrors.
The Holocaust was Nazi Germany’s deliberate, organized, state-sponsored persecution and machinelike murder of approximately SIX MILLION European Jews and at least five million Soviet prisoners of war, Romany, Jehovah’s Witnesses, homosexuals, and other victims.