former Jewish dwellings outside the newly established ghetto. Meanwhile, 15,000 Jews were crammed into an area previously inhabited by 3,000 people who used to live in a district consisting of 30 streets, 320 residential buildings, and 3,167 rooms. As a result, one apartment was allocated to every four Jewish families, and many less fortunate lived on the street. The ghetto was surrounded by the newly built walls that kept it separated from the rest of the city. In a grim foreshadowing of the near future, these walls contained brick panels in the shape of tombstones. All windows and doors that opened onto the "Aryan" side were ordered to be bricked up. Only four guarded entrances allowed traffic to pass in or out. Small sections of the wall still remain today, one part is fitted with a memorial plaque, which reads "Here they lived, suffered and perished at the hands of Hitler's executioners. From here they began their final journey to the death camps." Young people of the Akiva youth movement, who had undertaken the publication of an underground newsletter, HeHaluc HaLohem ("The Fighting Pioneer"), joined forces with other Zionists to form a local branch of the Jewish Fighting Organization (ŻOB, Polish: Żydowska Organizacja Bojowa), and organize resistance in the ghetto, supported by the Polish underground Armia Krajowa. The group carried out a variety of resistance activities including the bombing of the Cyganeria cafe – a gathering place of Nazi officers. Unlike in Warsaw, their efforts did not lead to a general uprising before the ghetto was liquidated. From 30 May 1942 onward, the Nazis began systematic deportations from the Ghetto to surrounding concentration camps. Thousands of Jews were transported in the succeeding months as part of the Aktion Krakau headed by SS-Oberführer Julian Scherner. Jews were assembled on Zgody Square first and then escorted to the railway station in Prokocim. The first transport consisted of 7,000 people, the second, of additional 4,000 Jews deported to Bełżec death camp on 5 June 1942. On 13–14 March 1943, the final 'liquidation' of the ghetto was carried out under the command of SS-Untersturmführer Amon Göth. Two thousand Jews deemed able to work were transported to the Płaszów labor camp. Those deemed unfit for work – some 2,000 Jews – were killed in the streets of the ghetto on those days with the use of "Trawniki men" police auxiliaries. The remaining 3,000 were sent