The chief concerns were to avoid further alienating the Palestinian Arabs, whilst also satisfying the imagined bogey of Jewish power. Into this policy vacuum stepped the Zionists. With their own plans for Palestine, they persuaded the government to go further than the vague Balfour Declaration. The text of the league of nations mandate for Palestine was based on Zionist proposals. The preamble stated Britain’s obligation to put the promise of the Declaration into effect. It also recognised the Jewish people’s historical connection with Palestine, and the ‘grounds for reconstituting their national home in that country’. The articles of the mandate went much further. As a legally binding document, it obliged Britain to secure, not facilitate, the establishment of the Jewish national home. To that end, the British administration was to cooperate with, and be advised by, the Zionist Organisation. In addition, the British had to facilitate Jewish immigration and settlement.