Answer:
During World War I, the British government supported the Arab Revolt against the Ottoman Empire, which was led by the Sharif of Mecca, Hussein bin Ali, and his sons, including Prince Faisal. The British saw the rebellion as an opportunity to weaken the Ottoman Empire and gain influence in the region.
To support the Arab princess and their rebellion, the British provided military advisors, weapons, and other supplies, as well as promising to recognize Arab independence in the region after the war. British officer T.E. Lawrence (also known as "Lawrence of Arabia") played a key role in supporting the Arab Revolt, and his experience and knowledge of the region helped to guide their strategy.
The British also made promises to the Arab leaders that they would support the establishment of an Arab state, which would include territories in the Arabian Peninsula, Syria, and Iraq. These promises were formalized in the McMahon-Hussein Correspondence, a series of letters exchanged between the British High Commissioner in Egypt and the Sharif of Mecca in 1915-1916.
Despite these promises, the post-war settlement led to the division of the former Ottoman territories under British and French control, and the creation of several new states, including Iraq, Jordan, and Syria. This led to disillusionment among the Arab leaders who had fought for independence, and contributed to ongoing conflict and instability in the region.