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In page Rozka Korczak:

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Rozka or Ruzka Korczak (1921, Płock – 1988) was a Jewish partisan leader during World War II. A Polish Jew, she served in the Fareynikte Partizaner Organizatsye and, alongside Vitka Kempner and founder Abba Kovner, assumed a leadership role[citation needed] in its successor group, the Avengers (Nakam).