What’s Next for Afghanistan-Pakistan Relations?

The fragile Afghanistan-Pakistan relationship is in crisis. Each country has accused the other of harboring terrorists, and border closures have caused hardship for people on both sides. A recent British-led mediation has defused some of these tensions. However, the relationship remains troubled, and longstanding irritants—such as a disputed border and the treatment of Afghan refugees in Pakistan—continue to fester. What is next for Afghanistan-Pakistan relations? Will the new détente be sustained or short-lived? Additionally, what are the implications of all this for U.S. policy? Can or should Washington play a role in trying to help ease these bilateral tensions?