Proper noun
English Wikipedia has an article on:IrgunWikipedia
Irgun
(historical) A Zionist paramilitary group that operated in Mandatory Palestine between 1931 and 1948.
1931 Irgun split Many Haganah fighters objected to the official policy of havlagah (restraint) that Jewish political leaders (who had become increasingly controlling of the Haganah) had imposed on the militia. Source: Internet
Accordingly, the Irgun accompanied its armed operations with public-relations campaigns aiming to convince the public of the Irgun's way and the problems with the official political leadership of the Yishuv. Source: Internet
A "brigade" in the Irgun was made up of three sections. Source: Internet
According to the Irgun these sort of armed attacks were legitimate, since the trains primarily served the British, for redeployment of their forces. Source: Internet
Afterwards, the "Aliyah Center" was founded, made up of representatives of Hatzohar, Betar, and the Irgun, thereby making the Irgun a full participant in the process. Source: Internet
A few hours later, the Irgun shot at an Arab in the Jerusalem neighborhood of Rechavia. Source: Internet