Before and after the March 1933 Reichstag elections, the Nazis intensified their campaign of violence against opponents. They set up concentration camps for extrajudicial imprisonment. One of the first, at Dachau, opened on 9 March 1933. Initially the camp contained mostly Communists and Social Democrats. Other early prisons were consolidated by mid-1934 into purpose-built camps outside the cities, run exclusively by the SS. The initial purpose of the camps was to serve as a deterrent by terrorizing Germans who did not conform.
The victories of Operation Barbarossa in the summer and fall of 1941 against Hitler's new enemy, the Soviet Union, led to dramatic changes in Nazi anti-Jewish ideology and the profile of prisoners brought to Auschwitz. Construction on Auschwitz II-Birkenau began in October 1941 to ease congestion at the main camp. Reichsführer-SS Heinrich Himmler, head of the Schutzstaffel (SS), intended the camp to house 50,000 prisoners of war, who would be interned as forced laborers. Plans called for the expansion of the camp first to house 150,000 and eventually as many as 200,000 inmates. An initial contingent of 10,000 Soviet prisoners of war arrived at Auschwitz I in October 1941, but by March 1942 only 945 were still alive, and these were transferred to Birkenau, where most of them died from disease or starvation by May. By this time the Nazis had decided to annihilate the Jewish people, so Birkenau became a labor and extermination camp.
Some ghettos were initially open, which meant that Jews could leave the area during the daytime but had to be back by a curfew. Later, all ghettos became closed, meaning that Jews were not allowed to leave under any circumstances. Major ghettos were located in the cities of Polish cities of Bialystok, Lodz, and Warsaw. Other ghettos were found in present-day Minsk, Belarus; Riga, Latvia; and Vilna, Lithuania. The largest ghetto was in Warsaw. At its peak in March 1941, some 445,000 were crammed into an area just 1.3 square miles in size.
After this night, the German government supported dozens of laws and decrees that took away Jews property and livelihood. By the end of the year, Jews were prohibited from attending school. One billion reichsmarks of Jewish property was seized as collective punishment against the nation’s Jews for the murder of von Rath. Those able to flee the country did. In the year after Kristallnact, more than 100,000 Jews left Germany as the situation deteriorated.
Those who arrived in Birkenau were driven out of the cattle wagons and put in rows … to this the band played, made up of the best musicians among the prisoners; they played, depending on the origins of the transport, Polish, Czech, or Hungarian folk music. The band played, the SS pummelled, and you had no time to reflect … some were forced into the camp, the others into the crematoria.