For France, the San Remo decision meant that most of its claims in Syria were internationally recognized and that relations with Faysal were now subject to French military and economic considerations. Britain`s ability to limit the French approach has also been significantly reduced.  France issued an ultimatum and intervened militarily at the Battle of Maysalun in June 1920, de introducing the Arab government and de placing King Faisal of Damascus in August 1920. In 1920, Britain appointed Herbert Samuel, 1st Viscount Samuel, High Commissioner and established a compulsory government in Palestine, which remained in power until 1948.  It is significant that Syria should be regarded as an independent country and not as a French mandate. However, the French quickly dislodged the Arab government from Feisal and a French mandate was introduced on Syria. The document below refers to the Turkish agreement on its provisions, but it is not clear that Turkey was represented at the conference. The Italians have found that they reserve the approval of the document until Italian interests are challenged in Asian Turkey. This document is the first in a series of agreements that have become the British mandate for Palestine. The San Remo Conference was an international meeting of the Supreme Council of Allies after World War I as a descendant of the Paris Peace Conference held April 19-26, 1920 at Villa Devachan in Sanremo, Italy. The San Remo resolution, adopted on 25 April 1920, established the attribution of the Class “A” mandate to the management of three Ottoman territories in the Middle East, then unrefined: “Palestine,” “Syria” and “Mesopotamia.” The borders of the three territories should be “later determined by the allied main powers,” so the status of peripheral regions, such as Zor and Transjordane, was unclear.
On January 6, 1920, Prince Faisal, Hussein`s son, signed an agreement with French Prime Minister Georges Clemenceau that “recognizes the right of Syrians to unite to govern themselves as an independent nation.”  On 8 March 1920, a pan-ical congress meeting in Damascus proclaimed an Arab kingdom independent of Syria.  The new state included modern Syria and Jordan, parts of northern Mesopotamia that had been set aside under the Sykes-Picot agreement for an independent Arab state or confederation, and nominally the territories of modern Israel-Palestine and Lebanon, although the latter areas were never under the control of Fayçal. Fayçal has been declared head of state. At the same time, Prince Zeid, Faisal`s brother, was declared regent of Mesopotamia. At the San Remo conference (April 24-25), an Anglo-French oil agreement was also concluded, which provided France with a 25% share of Iraqi oil and favourable conditions for the transport of oil, in exchange establishing the inclusion of Von Mosul in the British mandate of Iraq. This agreement between the Allies after the First World War (Britain, France, Italy, Japan) was adopted on 25 April 1920 at the San Remo conference. The mandate for Palestine was based on this resolution; it took up the Balfour Declaration of 1917 and Article 22 of the League Federation. Britain was tasked with establishing a “national homeland for the Jewish people” in Palestine. Terrorist borders were not decided until four years later. While Transjordan was not mentioned in the discussions, three months later, in July 1920, the French defeat of the Arab Kingdom of Syria overturned the British need to know “what is “Syria” for which the French received a mandate in San Remo?” and “does it include Transjordan?”  – subsequently, it decided to pursue a policy of trans-Jordanian liaison with the mandated territory of Palestine, but not to apply the special provisions that should offer a national homeland to the Jewish people west of the Jordan [b] [d] [d] [e]] – and the French declared to The Greater Lebanon and other states of its Syrian mandate on 31 August 1920.