The assassination of Iranian scientist Mohsen Fakhrizadeh will intensify debate in Tehran over whether to reengage in the nuclear deal with the Biden administration.

Hezbollah and its allies suffered serious losses in May’s parliamentary elections, and a divided Parliament will likely struggle to agree on a path out of Lebanon’s current crisis.

Armenia has been riven by disputes over its leadership since its military defeat by Azerbaijan last fall. Newly called elections are unlikely to reconcile the divisions in Armenian society caused by …

The first summit between Joe Biden and Vladimir Putin eased some of the tension in the fraught U.S.-Russia relationship. It also laid bare the difficult path ahead to resolving differences on many is…