Saudi king approves hosting U.S. troops to enhance regional security
The gesture comes amid rising tensions between Washington and Tehran in the Gulf that have impacted global oil markets.
US President Donald Trump and Saudi Arabia's King Salman bin Abdulaziz Al Saud (R) attend the Arab Islamic American Summit in Riyadh, Saudi Arabia May 21, 2017.(photo credit: REUTERS/JONATHAN ERNST)ByREUTERS