At the age of 18 he became a teacher in a Warsaw Jewish school and joined the Socialist-Zionist group "Poalei Zion" (Workers of Zion).
Arriving in the Land of Israel in 1906, he became involved in the creation of the first agricultural workers' commune (which evolved into the Kvutzah and finally the Kibbutz), and helped establish the Jewish self-defense group, “Hashomer” (The Watchman).
Following the outbreak of World War I he was deported by the Ottoman authorities with Yitzhak Ben-Zvi (later, Israel's second President). Ben-Gurion traveled on behalf of the Socialist-Zionist cause to New York, where he met and married Paula Monbesz, a fellow Poalei Zion activist. He returned to Israel in the uniform of the Jewish Legion, created as a unit in the British Army by Zionist leader Vladimir Jabotinsky.
Ben-Gurion was a founder of the trade unions, and, in particular, the national federation, the Histadrut, which he dominated from the early 1920's. He also served as the Histadrut's representative in the World Zionist Organization and Jewish Agency, and was elected chairman of both organizations in 1935.
Having led the struggle to establish the State of Israel in May 1948, Ben-Gurion became Prime Minister and Defense Minister. As Premier, he oversaw the establishment of the state's institutions. He presided over various national projects aimed at the rapid development of the country and its population: “Operation Magic Carpet,” the airlift of Jews from Arab countries, the construction of the national water carrier, rural development projects and the establishment of new towns and cities. In particular, he called for pioneering settlement in outlying areas, especially in the Negev.
In late 1953, Ben-Gurion left the