As a response to violent riots between Arabs and Jews occurring in Palestine in 1929, the British Government issues the Passfield White Paper in October of 1930. Decidedly anti-Zionist, containing restrictions on Jewish immigration and settlement development, the White Paper also criticizes Zionist institutions and claims they are negatively impacting the economic development of the Arab population in Palestine. In England, a Zionist campaign against the white paper ensues, resulting in British official, Ramsay MacDonald personally writing a letter to Zionist leader, Chaim Weizmann. In the letter, he explains the British government’s justification for the white paper and their increasingly anti-Zionist position (source).