Morning Briefing: Sept. 21, 2026

Here’s a rundown of all the news you need to start your Monday, including US President Donald Trump warning of major developments in the Iran war as he weighs his next move, Germany’s AfD emerging as the strongest party in state elections in Mecklenburg-Western Pomerania, and powerful explosions being reported at a military site in the southern countryside of Syria’s Aleppo province.TOP STORIES Trump warns he has entered 'deciding mode' on Iran, says 'big things' are in store U