Franco-Syrian War: At the Battle of Maysalun forces of the Arab Kingdom of Syria were defeated by a French army moving to occupy the territory allocated to them by the San Remo conference.

The Franco-Syrian War took place during 1920 between France and the Hashemite rulers of the newly established Arab Kingdom of Syria. During a series of engagements, which climaxed in the Battle of Maysalun, French forces defeated the forces of the Hashemite monarch King Faisal, and his supporters, entering Damascus on July 24, 1920. A new pro-French government was declared in Syria on July 25, headed by 'Alaa al-Din al-Darubi and the region of Syria was eventually divided into several client states under the Mandate for Syria and the Lebanon. The British government, concerned for their position in the new mandate in Iraq, agreed to declare the fugitive Faisal as the new king of Iraq.

The Battle of Maysalun, also known as the Battle of Maysalun Pass or the Battle of Khan Maysalun, was a four-hour battle fought between the forces of the Arab Kingdom of Syria and the French Army of the Levant on 24 July 1920 near Khan Maysalun in the Anti-Lebanon Mountains, about 25 kilometres (16 mi) west of Damascus.

The Syrian Arab Kingdom was a self-proclaimed, unrecognized monarchy existing briefly in the territory of historical Syria. It was announced on 5 October 1918 as a fully independent Arab constitutional government with the permission of the British Empire. It gained independence as an emirate after the withdrawal of British forces from OETA East on 26 November 1919, and was proclaimed a kingdom on 8 March 1920.

The San Remo conference was an international meeting of the post-World War I Allied Supreme Council as an outgrowth of the Paris Peace Conference, held at Castle Devachan in Sanremo, Italy, from 19 to 26 April 1920. The San Remo Resolution passed on 25 April 1920 determined the allocation of Class "A" League of Nations mandates for the administration of three then-undefined Ottoman territories in the Middle East: "Palestine", "Syria" and "Mesopotamia". The boundaries of the three territories were "to be determined [at a later date] by the Principal Allied Powers", leaving the status of outlying areas such as Zor and Transjordan unclear.