The SS was responsible for the vast majority of war crimes perpetrated under the Nazi regime, including the Holocaust. As part of its race-centric functions, the SS oversaw the isolation and displacement of Jewish people from the populations of Germany and conquered territories, seizing their assets and imprisoning them in concentration camps and ghettos where they would be used as slave labor, pending extermination.
Einsatzkommando refers to a sub-group of the five Einsatzgruppen mobile killing squads — 3,000 men — responsible for systematically killing every Jew and Soviet political commissar behind the Wehrmacht lines of Operation Barbarossa.
The Sturmabteilung (help·info), abbreviated SA, (German for "Assault detachment" or "Assault section", usually translated as "stormtroop(er)s"), functioned as a paramilitary organization of the NSDAP – the German Nazi party. They played a key role in Adolf Hitler's rise to power in the 1930s