The Irgun Organization is an armed Zionist organization incorporated into the Israeli army. Zeev Vladimir Jabotinsky is considered the spiritual father of this organization, whose leaders also included former Israeli Prime Minister Menachem Begin.
Irgun received generous secret support from Poland starting in 1936, due to the Polish government's desire to encourage Jewish immigration to Palestine. The name of the organization is closely linked to the Deir Yassin massacre, the assassination of the Swedish diplomat Count Bernadotte, and the bombing of the King David Hotel in Jerusalem.