The site was first suggested as a concentration camp for Polish prisoners by SS-Oberführer Arpad Wigand, an aide to Erich von dem Bach-Zelewski, Higher SS and Police Leader for Silesia. After this part of Poland was annexed by Nazi Germany, Oświęcim (Auschwitz) was located administratively in Germany, in the Province of Upper Silesia, Regierungsbezirk Kattowitz, Landkreis Bielitz. Bach-Zelewski had been searching for a site to hold prisoners in the Silesia region, as the local prisons were filled to capacity. Richard Glücks, head of the Concentration Camps Inspectorate, sent former Sachsenhausen concentration camp commandant Walter Eisfeld to inspect the site, which housed 16 dilapidated one-story buildings that had served as an Austrian and later Polish Army barracks and a camp for transient workers. German citizens were offered tax concessions and other benefits if they would relocate to the area. By October 1943, more than 6,000 Reich Germans had arrived. The Nazis planned to build a model modern residential area for incoming Germans, including schools, playing fields, and other amenities. Some of the plans went forward, including the construction of several hundred apartments, but many were never fully implemented. Basic amenities such as water and sewage disposal were inadequate, and water-borne illnesses were commonplace.
As a member of the Nazi Party and the Abwehr intelligence service, Schindler was in danger of being arrested as a war criminal. Bankier, Stern, and several others prepared a statement he could present to the Americans attesting to his role in saving Jewish lives. He was also given a ring, made using gold from dental work taken out of the mouth of Schindlerjude Simon Jeret. The ring was inscribed "Whoever saves one life saves the world entire." To escape being captured by the Russians, Schindler and his wife departed westward in their vehicle, a two-seater Horch, initially with several fleeing German soldiers riding on the running boards. A truck containing Schindler's mistress Marta, several Jewish workers, and a load of black market trade goods followed behind. The Horch was confiscated by Russian troops at the town of Budweis, which had already been captured by Russian troops. The Schindlers were unable to recover a diamond that Oskar had hidden under the seat. They continued by train and on foot until they reached the American lines at the town of Lenora, and then travelled to Passau, where an American Jewish officer arranged for them to travel to Switzerland by train. They moved to Bavaria in Germany in the fall of 1945.
In 1914, German strategic thinking derived from the writings of Carl von Clausewitz (June 1, 1780 – November 16, 1831), Helmuth von Moltke the Elder (26 October 1800 – 24 April 1891) and Alfred von Schlieffen (28 February 1833 – 4 January 1913), who advocated manoeuvre, mass and envelopment to create the conditions for a decisive battle (Vernichtungsschlacht). During the war, officers such as Willy Rohr developed tactics to restore manoeuvre on the battlefield. Specialist light infantry (Sturmtruppen, "storm troops") were to exploit weak spots to make gaps for larger infantry units to advance with heavier weapons and exploit the success, leaving isolated strong points to troops following up. Infiltration tactics were combined with short hurricane artillery bombardments using massed artillery, devised by Colonel Georg Bruchmüller. Attacks relied on speed and surprise rather than on weight of numbers. These tactics met with great success in Operation Michael, the spring offensive of 1918 and restored temporarily the war of movement, once the Allied trench system had been overrun. The German armies pushed on towards Amiens and then Paris, coming within 120 kilometres (75 mi) before supply deficiencies and Allied reinforcements halted the advance. Historian James Corum criticised the German leadership for failing to understand the technical advances of the First World War, having given tank production the lowest priority and having conducted no studies of the machine gun prior to that war.
After attending primary and secondary school, Schindler enrolled in a technical school, from which he was expelled in 1924 for forging his report card. He later graduated, but did not take the Abitur exams that would have enabled him to go to college or university. Instead, he took courses in Brno in several trades, including chauffeuring and machinery, and worked for his father for three years. A fan of motorcycles since his youth, Schindler bought a 250-cc Moto Guzzi racing motorcycle and competed recreationally in mountain races for the next few years.