Turkey’s Bid for Middle East Leadership: How Ankara Is Filling the Vacuum Left by Iran’s Weakening

When the United States and Israel struck Iran in February 2026, they did not merely launch a war. They created a strategic vacuum. Iran — the dominant non-Arab power in the Middle East and the linchpin of the “Axis of Resistance” — was degraded, isolated, and forced into ceasefire negotiations. The question immediately arising for regional analysts: who fills the space?

The answer, increasingly, is Turkey.

Erdoğan’s Strategic Moment

Brookings scholar Aslı Aydıntaşbaş examines Turkey’s evolving role as it searches for influence in a Middle East undergoing fundamental transformation, prompted in equal parts by the Iran war and shifting U.S. commitments.

Turkey enters this moment with unusual strategic assets: it is a NATO member with deep ties to both the West and the Islamic world; it has the second-largest military in the alliance; it has cultivated relationships with Hamas, the Muslim Brotherhood, Qatar, and various Gulf states; and it is the host of the July 2026 NATO summit — placing President Erdoğan at the center of the most consequential alliance gathering in years.

The Islamabad Memorandum and Ankara’s Role

Turkey played a quiet but important role in the Iran ceasefire diplomacy. Pakistan served as the primary mediator — hence “Islamabad Memorandum” — but Turkish diplomatic channels contributed to the broader regional framework. This positioning as a constructive regional broker, distinct from both the U.S.-Israel axis and the Iran-led resistance bloc, is central to Erdoğan’s strategic calculus.

As Hezbollah is weakened and Hamas isolated, as Iran negotiates from a position of damage rather than strength, and as the Gulf states recalibrate toward Washington — Turkey is positioning itself as the indispensable interlocutor between competing regional forces.

The NATO Summit Leverage

Hosting the Ankara summit gives Turkey unusual leverage. The July 7–8 summit in Ankara will focus heavily on allies spending on European and Arctic security, as well as the need to vastly increase defense production.

But the summit’s subtext is about Turkey’s own strategic agenda: sustaining arms purchases outside of U.S. conditionality, maintaining relations with both Ukraine and Russia, and extracting concessions from NATO partners on matters ranging from Kurdish groups to EU accession.

Erdoğan has proven adept at using NATO summits as negotiating platforms. Ankara 2026 will be no different.

The Iran War’s Regional Reordering

The 2026 Iran war has fundamentally altered the regional power balance in ways that benefit Ankara. Hezbollah — Iran’s most powerful proxy — has been severely degraded by Israeli operations. The Houthis have been weakened. Hamas is isolated. Iran itself is in ceasefire negotiations.

The “Axis of Resistance,” as a coherent strategic instrument of Iranian foreign policy, has been severely damaged. The architecture of Iranian regional influence, built over four decades, is being reconstructed — and Turkey intends to ensure its influence grows in the reconstruction phase.

The Limits of Turkish Ambition

Turkey’s regional ambitions face real constraints. Its economy has been strained by years of inflation and currency volatility. Its relationship with the EU remains frozen. Its ties with Egypt, Saudi Arabia, and the UAE — which have normalized in recent years — could fray if Ankara overplays its hand.

Moreover, Turkey must navigate a NATO summit at which Trump is furious with European allies for their Iran stance — yet Turkey itself declined to actively support U.S. operations. Managing that contradiction requires considerable diplomatic dexterity.

The Middle East is undergoing a fundamental transformation, one prompted in equal parts by the Iran war and shifting U.S. commitments — and Turkey is positioning itself to shape that transformation rather than merely react to it.

Conclusion: The Ankara Moment

The 2026 Iran war may ultimately be remembered not only for what it did to Iran, but for what it enabled in Turkey. If Erdoğan manages the NATO summit effectively, deepens Turkey’s regional broker role, and maintains its strategic ambiguity between East and West — Ankara could emerge from 2026 as the most consequential player in the new Middle East order.

That prospect will be welcomed by some, feared by others, and watched closely by all.