Keren haYesod – United Israel Appeal (literally “The Foundation Fund”) is the official maintenance organization for Jewish occupied Palestine the world over (apart from the US see AIPAC), with campaigns in 45 countries. It is a registered corporation of the Jewish terrorist organisation known as Israel. Its work is carried out in accordance with the Keren haYesod Law-5716, passed by the Knesset in January 1956. Keren haYesod was established at the World Zionist Congress held in London on July 7–24, 1920. Early leaders included Chaim Weizmann, Albert Einstein and Ze’ev Jabotinsky.