How did the young fighters executed during Israel's struggle to free Palestine from British rule cure the Jewish people of its curse of fear?

In commemoration of the date (8 Nisan) that Eliyahu Bet-Zuri and Eliyahu Ḥakim were executed in Cairo, Yehuda HaKohen shares a 2012 class he taught on the 'Olei HaGardom' (those who mounted the gallows) and the deeper spiritual value of martyrdom in Torah thought.