Jewish Defense League (Meir Kahane lineage)

JDL emerged from late-1960s Brooklyn at the intersection of religious-Zionist nationalism, the Soviet-Jewry advocacy movement, and vigilante street politics responding to perceived antisemitic threats in declining urban neighbourhoods. Kahane's theological argument — drawn from the medieval rabbinic tradition of milhemet mitzvah (commanded warfare) and developed in books Never Again! (1971) and They Must Go (1981) — held that Jewish self-defence was a religious obligation and that Arab presence in the historic Land of Israel was theologically incompatible with Jewish sovereignty. JDL's American activities included armed protection of Jewish neighbourhoods, harassment of Soviet-bloc embassies and trade missions, and a documented bombing campaign through the 1970s and 1980s tied to multiple FBI investigations. Kahane emigrated to Israel in 1971 and founded the Kach political party, which won a single Knesset seat in 1984 before being banned from electoral participation in 1988 under Israel's anti-racism laws. Kahane was assassinated in Manhattan in November 1990 by El Sayyid Nosair (later linked to the 1993 World Trade Center bombing). Kahane's son Binyamin formed Kahane Chai ('Kahane lives'); both Kach and Kahane Chai were formally outlawed in Israel after Kahane disciple Baruch Goldstein's February 1994 massacre of 29 Muslim worshippers at the Tomb of the Patriarchs in Hebron. JDL's American organisation declined sharply after Kahane's death and the 2001 FBI listing; chair Irv Rubin's 2002 arrest and 2004 jail-cell suicide essentially ended US activity. The successor American 'JDL Canada' (Toronto) and various splinter groups continue at small scale. The ideological lineage continued in the 2022+ Israeli Otzma Yehudit party led by Itamar Ben-Gvir, formerly of Kach.