U.S. President Barack Obama has arrived in Saudi Arabia at a time of strained relations between Washington and its ally.
Obama will hold talks with King Salman in the capital, Riyadh, after his arrival in the Saudi capital on April 20.
On April 21, Obama will sit with leaders from the Gulf Cooperation Council, which includes Bahrain, Kuwait, Oman, Qatar, Saudi Arabia, and the United Arab Emirates.
He will be joined by Defense Secretary Ash Carter and Secretary of State John Kerry.
Obama hopes the talks will focus on the fight against the Islamic State extremist group and efforts to end conflicts in Syria and Yemen.
But the Sunni-ruled Gulf monarchies are worried after the lifting this year of international sanctions against Shi’ite Iran.
Also clouding the visit is U.S. legislation that would potentially allow the Saudi government to be sued in American courts over the September 11, 2001, attacks on the United States.