It’s been eleven days since three men stood in Islam’s holiest city and signed something that’s quietly rewriting the Middle East’s security map. On August 7, Saudi Crown Prince Mohammed bin Salman, Turkish President Recep Tayyip Erdogan and Pakistani Prime Minister Shehbaz Sharif put their names to the Mecca Joint Defence Agreement. The core promise fits in one line: an attack on any one of the three is an attack on all three.