Irgun

In one violent tit-for-tat, members of Irgun, a Zionist paramilitary force, threw bombs at Arab workers standing in line at a Haifa oil refinery.

It had been bombed by the right-wing Zionist organization Irgun as part of its effort to persuade the British to leave Palestine.

Shilansky maintained close ties to the group when Irgun morphed into a political party headed by Menachem Begin.

Most on the ship, Shilansky included, were members of Irgun, the right-wing underground resistance group.

Fudging his age by two years, Ranan enlisted in the Irgun at 14 while still enrolled in school, the Herzliya Gymnasium in the coastal city of Herzliya.