Eitan Livni was born in Poland in 1919, and brought to Eretz Israel at the age of six by his family, which settled in Tel Aviv. At the age of 19, he joined the Betar Company at Zikhron Yaakov, where he was assigned to agricultural work and guard duty. Before long, he joined the Irgun, and a year later, he was summoned to an commanders course at Tel Tsur (near Binyamina).
When the revolt was proclaimed in February 1944, he was in charge of he Irgun activities, and was later appointed to the General Headquarters as chief operations officer. Eitan supervised each operation from the moment the target was selected, through the planning to the implementation stage.
He was arrested on April 4, 1946, after the sabotaging of the railway tracks in the south. He was sentenced, together with his comrades, to 15 years imprisonment, but two years later, was freed in the Acre jail break.
He was sent clandestinely to Europe to organize action against British targets there, and on May 15, 1948, he returned home to take part in the War of Independence.
Was active In the Herut movement and served as member of the Eighth to the Tenth Knesset.
Sources: The Irgun Site