Israelis seem to see the Warsaw Ghetto as the highest form of heroism during Churban Europa / the Shoah / Holocaust. However, there were so many layers of heroism even inside Auschwitz, where victims refused to be dehumanised and some people's faith remained strong. See Joseph Elias [NY, Artscroll] textbook on the Holocaust and Irving Rosenbaum, The Holocaust and Halakhah [NY, Ktav]