The war on Iran cracked the US-led regional order. The Mecca pact could deal the final blow

What Happened

On 7 August, a joint defence agreement was signed in Mecca by Saudi Arabia, Turkey, and Pakistan. The pact declares that an armed attack against one signatory will be regarded as an attack against all three, a provision Turkish Foreign Minister Hakan Fidan described as technically equivalent to NATO's Article 5, while insisting the agreement is not directed against Iran or any other state. The signing follows a US-Israeli military campaign against Iran that, according to the article, failed to achieve its political objectives, exposing the limits of American and Israeli deterrence and accelerating the unravelling of the US-led regional security order. By the time of the Mecca agreement, Iran had weathered the assault, retaliated, and on 17 June 2026 signed a memorandum of understanding with Washington that included negotiations over the Strait of Hormuz and demands for sanctions relief and compensation, demonstrating its capacity to impose costs and gain leverage.

Key Actors

Why It Matters

The Mecca agreement represents a potential structural shift away from the US-dominated security architecture that has defined the Middle East since World War II. It signals that key Sunni powers are no longer willing to rely exclusively on Washington for defence, especially after witnessing Iran's ability to withstand a direct military campaign and disrupt global energy flows via the Strait of Hormuz. The pact's arc around Iran—with Saudi Arabia to the southwest, Turkey to the northwest, and Pakistan to the east—could reshape regional alignments and challenge the assumption that no independent Muslim military bloc can emerge. It also underscores the strategic recalibration forced by the erosion of American and Israeli deterrence.

Watch For

Concrete steps to operationalise the Mecca agreement, including joint military exercises, defence-industrial cooperation, and formal ratification processes. Monitor reactions from Iran, particularly whether it views the pact as a threat despite Turkish denials, and from the US, which may see the pact as a challenge to its regional dominance. Also watch the implementation of the 17 June 2026 Iran-US memorandum of understanding, especially negotiations over Strait of Hormuz security and sanctions relief, as these will influence the strategic environment in which the new alliance operates.