How significant was the presence of foreign powers as an influence on the nature and growth of Arab nationalism in the years 1900-2001?

During the years 1900-2001 a number of significant interventions occurred which affected the growth and nature of Arab nationalism. Several key pressures considerably influenced a change in the nature of nationalism; including, economic levers, agreements and military presenses in the Middle East. Arab nationalism arose out of the fear of the possibility and later the certainty of European or American dominance. The emerging ideology believed all Arabs to be united by both a shared language and history. Foreign intervention in the Middle East long predated the First World War, dating back to during the
This secondary source offers a late 20th century vantage point of the deal which gives it an extra degree of credibility.

From 1900 to 2001, the United States has had global interests in the Middle East, the U.S. has made itself a key foreign power by using its strong diplomatic, economic, and military power in support of its national interests. This was demonstrated in 1919 where under President Woodrow Wilson the League of Nations was formed; it was quick to hand out a series of mandates laying out the colonial boundaries of the Middle East according to the U.S. These boundaries were not ideal for the Middle Eastern inhabitants however, the U.S. managed to maintain a positive reputation throughout World War One. I believe this to be a result of the British-French mistrust created as a result of previous agreements that were not stuck to. Therefore the US seemed more trustworthy and was viewed as a valuable ally.
In the years between the wars Arab nationalist opposition towards foreign intervention continued to grow. By 1952, Gamal Abdal Nasser had led a coup against the Egyptian king and was named president of Egypt. He ended official British influence and became a truly symbolic leader for all Arabs. He tried to unite Egypt and Syria into a single United Arab Republic, but this attempt lasted for only a few years. It was clear Nasser saw foreign powers such as Britain as intervening trouble makers this is demonstrated by his clear dis-like of the Baghdad