1920, France and Great Britain began to create nations in the Middle East. The French were worried about Arab nationalism so they decided to "divide and conquer". The French supported minority groups.
In Palestine the British created a Jewish homeland, this made the Arabs angry.
In the 1930's many of the Arab countries wanted to be independent. Both France and Great Britain had all the power in the countries they created. Great Britain gave Iraq and Egypt independence but did not give independence to Palestine.
In 1936 France was forced to give Syria and Lebanon independence.
In 1940, during World War II, the Allies took control over much of the Middle East.