Also known as LEHI, Hebrew acronym for Fighters for the Freedom of Israel. Extremist splinter faction which split off from the Irgun Z’vai L’umi in 1940. It was formed by Abraham (Yair) Stern, who was killed by the British in 1942. Believing that the Irgun was not sufficiently aggressive in its fight against British rule in Palestine, the Stern Group resorted to terror tactics, including assassinations, to drive the British out of the country. It dissolved after the establish_ment of the Jewish state. Some of its leaders have become prominent in Menachem Begin‘s Herut party (See Revisionist Zionism). One of them. Yitzhak Shamir, was speaker of the Knesset during the period of Israel’s peace negotiations with Egypt, and served as Prime Minister of Israel.