
1) Early Israeli underground
Found on
https://www.crosswordclues.com/clue/irgun

The Irgun (אִרְגּוּן; full title: {script|Hebr|הָאִרְגּוּן הַצְּבָאִי הַלְּאֻמִּי בְאֶרֶץ יִשְׂרָאֵל} Ha-Irgun Ha-Tzvai Ha-Leumi be-Eretz Yisrael, lit. `The National Military Organization in the Land of Israel`), was a Zionist paramilitary group that operated in Mandate Palestine between .....
Found on
http://en.wikipedia.org/wiki/Irgun

Short for Irgun Zvai Leumi (National Military Society), a Jewish guerrilla group active against the British administration in Palestine (1946-48). Their bombing of the King David Hotel in...
Found on
http://www.encyclo.co.uk/local/20688

a militant Zionist underground group, active chiefly during the period (1917–48) of British control by mandate of Palestine.
Found on
https://www.infoplease.com/dictionary/irgun

An abbreviation for Irgun Zvai Leumi (National Military Organization). Established in 1937 as an underground Jewish extremist organization, also known as Etzel, derived from the pronounced initials of its Hebrew name. A more extreme group, known as the Stern Gang ( q.v. ), broke away from it in 1939. Both groups were especially active during and af...
Found on
https://www.photius.com/countries/israel/glossary/index.html
No exact match found.