The Polish government-in-exile in London learned about the extermination camps from the Polish leadership in Warsaw, who from 1940 "received a continual flow of information about Auschwitz", according to historian Michael Fleming. This was in large measure thanks to Captain Witold Pilecki of the Polish Home Army, who allowed himself to be arrested in Warsaw and spent 945 days in Auschwitz from September 1940 until April 1943, organizing the resistance movement inside the camp.
In March 1943, the Krakow ghetto was being liquidated, and all the remaining Jews were being moved to the forced-labor camp of Plaszow, outside Krakow. Schindler prevailed upon SS-Haupsturmführer Amon Goeth, the brutal camp commandant and a personal drinking companion, to allow him to set up a special sub-camp for his own Jewish workers at the factory site in Zablocie. There he was better able to keep the Jews under relatively tolerable conditions, augmenting their below-subsistence diet with food bought on the black market with his own money. The factory compound was declared out of bounds for the SS guards who kept watch over the sub-camp.
The camp included an administration building that contained offices for the Gestapo trial commissioner, SS authorities, the camp leader and his deputies. These administration offices consisted of large storage rooms for the personal belongings of prisoners, the bunker, roll-call square where guards would also inflict punishment on prisoners (especially those who tried to escape), the canteen where prisoners served SS men with cigarettes and food, the museum containing plaster images of prisoners who suffered from bodily defects, the camp office, the library, the barracks, and the infirmary, which was staffed by prisoners who had previously held occupations such as physicians or army surgeons.
December 11, 1941 - Hitler declares war on the United States. President Roosevelt then asks Congress for a declaration of war on Germany saying, "Never before has there been a greater challenge to life, liberty and civilization." The U.S.A. then enters the war in Europe and will concentrate nearly 90 percent of its military resources to defeat Hitler.
After 1945 the name was applied to the displaced persons camp established nearby, but it is most commonly associated with the concentration camp. From 1941 to 1945, almost 20,000 Soviet prisoners of war and a further 50,000 inmates died there. Overcrowding, lack of food and poor sanitary conditions caused outbreaks of typhus, tuberculosis, typhoid fever and dysentery, leading to the deaths of more than 35,000 people in the first few months of 1945, shortly before and after the liberation.