Baltic states
The countries of Estonia, Latvia, and Lithuania located in the northeast of Europe along the eastern coast of the Baltic Sea are also referred to as the Baltic states. [...]
Balkans
The region comprising the easternmost of the three southern peninsulas of eastern Europe, the Balkans are defined by some on cultural and historical terms and by others as a geographic region. Parts of the Balkan region, which comprises at least ten countries, were invaded by Nazi Germany in 1941, including Greece, Yugoslavia, Albania, and Bulgaria.
Babi Yar
A ravine near Kiev, Ukraine where Nazi killing squads (Einsatzgruppen) murdered at least 34,000 Jews on September 29-30, 1941, in one of the largest massacres of the war.
Auschwitz
The German name for the Polish city Oswiecim in the province of Upper Silesia, which was occupied by the Nazis in 1939 and annexed to Germany. Auschwitz was the site of the largest complex of Nazi labor and concentration camps.
Auschwitz-Birkenau
Also known as Auschwitz II, Auschwitz-Birkenau was the largest camp in the Auschwitz complex of camps and the largest of the Nazi killing centers. [...]