Ze'ev Jabotinsky, (1880 - 1940), was a Russian Jewish Revisionist Zionist leader, author, poet, orator, soldier and founder of the Jewish Self-Defense Organization in Odessa. With Joseph Trumpeldor, he co-founded the Jewish Legion of the British army in World War One. Later he established several Jewish organizations in what was then called Palestine, including Beitar, HaTzohar and the Irgun.