The Jewish insurgency in Mandatory Palestine, known in the United Kingdom as the Palestine Emergency, was a paramilitary campaign carried out by Zionist militias and underground groups—including Haganah, Lehi, and Irgun—against British rule in Mandatory Palestine from 1944 to 1948. The tensions between the Zionist underground and the British mandatory authorities rose from 1938 and intensified with the publication of the White Paper of 1939. The Paper outlined new government policies to place further restrictions on Jewish immigration and land purchases, and declared the intention of giving independence to Palestine, with an Arab majority, within ten years. Though World War II brought relative calm, tensions again escalated into an armed struggle towards the end of the war, when it became clear that the Axis powers were close to defeat.
The Haganah, the largest of the Jewish underground militias, which was under the control of the officially recognised Jewish leadership of Palestine, remained cooperative with the British. But in 1944 the Irgun, an offshoot of the Haganah, launched a rebellion against British rule, thus joining Lehi, which had been active against the authorities throughout the war. Both were small, dissident militias of the right-wing Revisionist movement. They attacked police and government targets in response to British immigration restrictions.
