The domestic and international consensus has shown signs of fraying as midterm elections loom in the United States and Europeans face the prospect of a cold winter.
The hostilities that flared again last week reflect decades of animosity over a mountain region, but the consequences could be far wider. Here’s a guide.
On his first trip to the region since taking office, President Biden will begin in Israel, which has been building relations with Arab nations. He will also make a stop in Saudi Arabia.