This article looks at the British mandate in Palestine (1922-1948) as the last period in which the country was united and it discusses the growth of the national and political antagonism between the Jewish Zionist community (Yishuv) and the Arab-Palestinian one through the lenses of the mandatory policies towards both. In particular, in the second part, it focuses on the role played by education in this national competition, from elementary school to higher education. This article integrates primary sources from a vast array of UK and European archives with a vast bibliographical research which discusses the historiographical placement of the Mandate in the history of the Israeli-Palestinian conflict.