Iran sought to play down worries about a new defence pact between Saudi Arabia, Pakistan and Turkey that is reshaping security calculations across the Middle East and wider Muslim world.

The three countries signed the Mecca Joint Defence Agreement in Mecca on 7 August. The agreement states that an attack on one of the members is considered an attack on all three and creates a collective-defence obligation between the parties.

Iranian Foreign Ministry spokesman Esmaeil Baghaei said on 10 August that Tehran had no concerns about the deal.

“The development is part of a wider trend of regional countries taking more responsibility for their security, rather than relying on outside powers,” Baghaei said. Such cooperation could be useful if it is all-embracing, reflects the region's geopolitical realities and addresses what Tehran views as the main sources of instability, he said.

The deal is also particularly sensitive for Iran’s relations with its neighbours. Regional tensions have risen amid the continuing conflict involving Iran, the United States and Israel, while Iran-backed Houthi forces have also launched attacks in and around Saudi Arabia.

Saudi Arabia, Pakistan and Türkiye have stressed that the deal is defensive and not aimed at any one country. "It is purely defensive and open to any other country that meets its conditions," Pakistan's Foreign Minister Ishaq Dar said.

But that reassurance has not dispelled questions about the strategic implications of the deal.

The three countries offer different military and political capabilities to the arrangement. Pakistan is a nuclear-armed state with a long history of military operations; Turkey is a NATO member with a large and growing defence industry; and Saudi Arabia has substantial financial resources and regional influence. This has led analysts to wonder how the three governments would react if one of them were attacked.

But the initial response from Iran has been remarkably muted.

Tehran’s position suggests it does not see the deal as a direct military threat at this stage. But Iranian officials appear more interested in whether the new security architecture can morph into a wider regional regime that reduces reliance on the United States and other outside powers.

The more important question is how the pact will work in practice.

Its collective-defence clause could be invoked if tensions between Iran and regional states were to escalate. Meanwhile, the accord does not automatically determine how Türkiye, Pakistan and Saudi Arabia would react to each future crisis, and their relation to their existing bilateral and multilateral security commitments remains important.

The deal also comes as Saudi Arabia and Iran have sought to manage their long-standing rivalry through diplomatic engagement. The extent to which the new defence arrangement strengthens regional deterrence or adds another layer of competition will depend, for the most part, on how its members interpret and implement their pledges.

For now, Tehran is suggesting it sees the development as something it is watching rather than an immediate confrontation. Iran’s response also keeps it open to agreeing to wider regional security cooperation if it feels the framework is truly independent, inclusive and not designed to contain Iran.

The durability and strategic importance of the Mecca agreement will in the end depend less on its signing than on how the three governments react when the region faces its next major security crisis.