Russia helped end a 2020 war and its troops policed the cease-fire. But with a new crisis in the Caucasus heating up, Moscow, distracted and weakened by Ukraine, has not intervened.
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.
The House speaker, who has previously inserted herself at the center of global conflicts, is the highest-ranking American official to visit Armenia since it gained independence 30 years ago.