AcknowledgedThe UK and France bear slightly more responsibility for the chaos in the Middle East than the US. The British and French carved up the Middle East after the end of WWI and did not pay attention to the ethnic, religious and cultural differences within the region. They also turned their backs on the Hashmites (Sharif bin Ali) and that allowed the Sauds to rise to power and create Saudi Arabia.
No matter what the U.S. does in the Middle East, the chaos in the region will always link back to the Brits & French.