United States President Barack Obama, at the Gulf Cooperation Council Summit in Saudi Arabia, says the United States will continue to deter and confront aggression against Gulf Arab states; joins others in warning the fragile cease-fire in Syria is on the verge of collapse; pledges vigilance about Iran's destabilizing activities in the Middle East; wants Gulf allies to offer more democratic reforms and improve human rights; and, says the U.S. and its Gulf partners should wait to see whether Iraq can resolve its political crisis before committing more financial aid which is impeding the fight against ISIL.