High Quality Content by WIKIPEDIA articles! High Quality Content by WIKIPEDIA articles! The Jewish Defense Organization (JDO) is a militant Jewish organization in the United States. The JDO was founded in the early 1980s by Mordechai Levy after a violent feud with the Jewish Defense League's former leader Irv Rubin, who was murdered in jail in 2002. It is one of two United States offshoots of the Jewish Defense League (JDL) after a breaking with the JDL's former leader Meir Kahane. According to the Anti-Defamation League, the JDO is a branch of Kahanism. The JDO opposes the ADL and believes that ADL head Abe Foxman obtained a pardon for Marc Rich after Rich made a contribution to the ADL. The JDO views itself as a Jabotinskyite organization.