Resistance movement in Auschwitz

The organization of underground resistance movements in Auschwitz concentration camp began in the second half of 1940, shortly after the camp became operational in May that year. In September 1940 Witold Pilecki, a Polish army captain, arrived in the camp. Using the name Tomasz Serafiński (prisoner number 4859), Pilecki had allowed himself to be captured by Germans in a street round up (łapanka) with the goal of having himself sent to Auschwitz to gather information and organize resistance inside. Under Pilecki's direction the Związek Organizacji Wojskowej (Union of Military Organization), ZOW, was formed.