Summary … This agreement between post-World War I allied powers (Britain, France, Italy, Japan) was adopted on April 25, 1920 during the San Remo Conference. The Mandate for Palestine was based on this resolution; it incorporated the 1917 Balfour Declaration and the Covenant of the League of Nation’s Article 22. Britain was charged with establishing a “national home for the Jewish people” in Palestine. Terroritorial boundaries were not decided until four years after.
This resolution, consisting of the Balfour Declaration and Article 22 of the Covenant of the League of Nations, is the basic document upon which the Mandate for Palestine was constructed.