Israel was admitted as a member of the UN by majority vote on 11 May 1949. An Israeli-Jordanian attempt at negotiating a peace agreement broke down after the British government, fearful of the Egyptian reaction to such a treaty, expressed their opposition to the Jordanian government. In the early years of the state, the Labor Zionist movement led by Prime Minister David Ben-Gurion dominated Israeli politics. The kibbutzim, or collective farming communities, played a pivotal role in establishing the new state.