The Mecca Joint Defense Agreement, signed on Aug. 7 by Saudi Arabia, Turkey and Pakistan, signals a potential shift in the Middle East’s security order. Saudi Arabia is home to Islam’s two holiest sites — Mecca and Medina — and is a global oil powerhouse. Turkey is a major NATO military power with a robust defense industry. Pakistan is the only Muslim-majority country with nuclear weapons. Together, these countries could reshape the region’s security landscape and influence developments well beyond the Middle East. Initially, many observers were skeptical about the agreement, questioning whether the alliance could work in practice. Such doubts reflected the belief that the three countries have divergent security concerns and strategic priorities. However, contrary to these expectations, they moved quickly. Within weeks, they agreed to establish a secretariat in Saudi Arabia. Following renewed Houthi attacks, Pakistan stepped up its military support and Turkey provided air defense and technical assistance. The agreement’s central provision resembles Article 5 of the NATO tre