President Donald Trump is set to meet with Syrian President Ahmad al-Sharaa, in a face-to-face with the onetime insurgent leader who spent years imprisoned by U.S. forces after being captured in Iraq.

President Trump basked in this desert kingdom’s glitzy welcome as he announced an end to sanctions on Syria, signed investment deals with Saudi Arabia and issued a pointed warning to Iran. On the first of a four-day Middle East visit,

President Trump, on a state visit to Saudi Arabia, said he made the decision after speaking to the Saudi crown prince. The president is trying to drum up Saudi investment in the U.S.