US President Barack Obama welcomes the emir of Kuwait Sheikh Sabah al-Ahmed al-Sabah to the White House in Washington, DC, on May 13, 2015. Obama is hosting leaders of the Gulf Cooperation Council (GCC) to allay their fears over a potential nuclear deal with Iran and to discuss regional security issues.   AFP PHOTO/NICHOLAS KAMM        (Photo credit should read NICHOLAS KAMM/AFP via Getty Images)