In this video (04:52), filmed at a pro-Israel conference in 2009, Israeli historian Benny Morris explains the three underground Jewish military organizations involved in the fighting of 1947 and 1948: The Haganah, the largest group, formed by the socialist parties which controlled the Zionist enterprise, and two small right wing organizations, defined by many as terrorist organizations: the Irgun (a.k.a. Etzel) and the Lehi (a.k.a. Stern Gang). Morris explains the ideology and tactics of each organization, the role of each during the War of Independence, and the relationship between them,