India, Aug. 23 -- A defence treaty agreed in Mecca on August 7 binds Saudi Arabia, Turkey, and Pakistan to a single mutual-defense promise: an armed attack on one nation will be viewed as an attack on all three. The agreement is already being called "Islamic NATO," although that isnt its official name. The comparison rests on its central pledge, which resembles NATOs Article 5. Yet the pacts real importance will depend less on its language than on whether the three governments build the structures needed to act together in a crisis. Saudi Crown Prince Mohammed bin Salman, Turkish President Recep Tayyip Erdogan, and Pakistani Prime Minister Shehbaz Sharif signed the Makkah Joint Defence Agreement in Mecca. Its stated goals include deterren...