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![SS troops advance during the invasion of Greece. The invasion of the Balkans began in April 1941. [LCID: 20390]](https://encyclopedia.ushmm.org/images/thumb/32fa216d-f273-4760-9c01-099e4c03dcd1.jpg)
Featured Article
Greece
German policies varied from country to country, including direct, brutal occupation and reliance upon collaborating regimes. In Greece, over 80% of its prewar Jewish population was murdered.
![German soldiers direct artillery against a pocket of resistance during the Warsaw ghetto uprising. [LCID: 34083b]](https://encyclopedia.ushmm.org/images/thumb/8ffe37b4-0b4f-4966-9e03-838766fb9e89.jpg)
![Jews from Macedonia who were rounded up and assembled in the Tobacco Monopoly transit camp before deportation to the Treblinka killing ... [LCID: 79737]](https://encyclopedia.ushmm.org/images/thumb/f2c4528d-d346-46d8-a20c-1cde912c2078.jpg)
![Illustration from an antisemitic children's primer. [LCID: 10640c]](https://encyclopedia.ushmm.org/images/thumb/4c6348d1-d3e6-4be3-aae5-b12761f4f20a.jpg)
![Chief Prosecutor Benjamin Ferencz presents evidence during the Einsatzgruppen Trial. [LCID: 09918]](https://encyclopedia.ushmm.org/images/thumb/b8542ad8-3e73-4b7c-a368-2dcbc971fa85.jpg)
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ID Cards
Learn more about personal experiences during the Holocaust
Timeline of Events
Explore a timeline of events that occurred before, during, and after the Holocaust.
Discussion Questions
How and why was the Holocaust possible?