Vladka Meed was an underground courier who smuggled weapons to the Jewish Fighting Organization inside the Warsaw Ghetto while passing as a Christian outside its walls. In 1948 she published a memoir about her experiences, On Both Sides of the Wall. Meed received many awards for her work in Holocaust education and memorialization.

Kashariyot were young women who traveled on illegal missions for the Jewish resistance in German-occupied Eastern Europe during the Holocaust. They smuggled goods, news, and other Jews in and out of the ghettos of Poland, Lithuania, and parts of Russia. While those who fought the Germans within the ghettos are often most celebrated for their heroism, kashariyot were essential in the survival of Jews within ghettos.