The economic importance of the Middle East to Trump is highlighted by the fact that the visit to Saudi Arabia was due to be the first overseas trip of his second term in the White House. That was before the death of Pope Francis necessitated Trump attending his funeral in Rome towards the end of April.

The removal of US sanctions is set to clear the way for greater engagement by humanitarian organisations working in Syria, and ease foreign investment and trade as the country rebuilds.

A Trump Tower in Damascus, a detente with Israel and U.S. access to Syria's oil and gas are part of Syrian leader Ahmed al-Sharaa's strategic pitch to try to get face time with U.S. President Donald Trump during his trip to the Middle East,