The Jewish Fighting Organization (the ZOB), believing that the Cracow Ghetto was too small to make armed struggle against the Germans possible, decided to carry the fight to the "Aryan" side of the city. The best-known operation outside the ghetto took place on December 23, 1942, when 11 Germans were killed and 13 wounded in an attack on a downtown café, called Cyganeria, that German officers used as a meeting place.