"We have had three administrations that have not prioritized Syrian stability. If you do not attend to it, it attends to you, like the main problems in the Middle East. The instability in Syria spills over to broader changes," said Brian Katulis, a senior fellow and vice president of policy at the Middle East Institute.
Katulis told Fox News Digital: "The instability in Syria broke the world in the last decade. Syria broke the rules of war because [President Bashar] Assad and Russia murdered hundreds of thousands of civilians." The Syrian civil war caused waves of migration that disrupted politics in Europe and the U.S., he noted.