 The prison capacity was boosted to 2,200, and it became the largest prison in the occupied country.In spring 1943 the Nazi Germans started carrying out executions directly inside the facility itself, where three cells had been adapted for this purpose.General Josef Bílý, who at the beginning of the German occupation of Czechoslovakia led the anti-Nazi resistance group Obrana Národa ("National Defense"), was imprisoned at Pankrác Prison before being executed by shooting elsewhere in 1941.