ISTANBUL ― Following Iranian Foreign Minister Javad Zarif’s recent visit to the Gulf states, the Islamic Republic’s charm offensive is set to continue with President Hassan Rouhani’s trip to Turkey early this month. Unlike the majority of Iran’s Arab neighbors, Turkey unequivocally welcomed the interim nuclear deal concluded in November between Iran and the P5+1 (the United Nations Security Council’s five permanent members and Germany). But Turkish policymakers are keenly aware that the agreement may upend the Middle East’s fragile balance of power.

From Turkey’s perspective, the nuclear deal, if successfully implemented and made permanent after six months, is set to eliminate a major security concern. Prime Minister Recep Tayyip Erdogan’s government does not want to be faced with a nuclear Iran, fearing the emergence of an asymmetric power relationship with the Islamic Republic after centuries of balanced ties.

But Turkey also did not want a military intervention in Iran, led by the United States. It was believed that a military strike would create even more problems in terms of regional stability and security. That is why Turkish policymakers have consistently championed a diplomatic solution to the Iranian conundrum, which is what they got with the latest deal.

There are other reasons why Turkish officials have welcomed the interim agreement so warmly. First, they interpret the deal as vindication of their ill-fated effort in May 2010 (together with Brazil) to reach an agreement with Iran on the disposition of Iran’s nuclear fuel. Turkish authorities continue to highlight that earlier tripartite agreement with Iran. The foreign ministry, for example, released a statement noting that, “The agreement … constitutes the first concrete positive development concerning Iran’s nuclear program since the Tehran Declaration of 2010.”

Turkey is also satisfied that the deal does not weaken its position on sovereign rights under the Nuclear Non-Proliferation Treaty. Turkey has consistently defended the interpretation that states have the right to establish domestic uranium-enrichment programs under the NPT, provided that they comply with their treaty commitments.

Even at the peak of diplomatic tensions with Iran, Turkey refrained from adopting America’s more maximalist position, which challenged the validity of Iran’s right to enrich uranium. So the tacit and conditional acceptance of this right is a satisfactory outcome for Turkey. Though Turkey currently has no plans to develop a fuel cycle of its own, its ambitious agenda for developing nuclear power has made policymakers intent on safeguarding the rights recognized by the NPT, including the right to enrich uranium.

There are also significant economic considerations for Turkey, which relies on Iran for a substantial share of its energy imports. Equally important, as a neighboring country, Iran has been a traditional trading partner ― a relationship worth more than $15 billion per year. As a result, Turkey’s export potential has been negatively affected by the rising stringency of the sanctions regime against Iran, with trade losses estimated at $6 billion for the first nine months of 2013. The gradual easing of the sanctions is expected to benefit Turkey’s export industries, which hope to satisfy pent-up Iranian demand for consumer and investment goods.

Finally, in contrast to Arab states like Saudi Arabia, Turkey is generally comfortable with the deal’s geopolitical ramifications. The improvement of Iran’s relationship with the West and the easing of diplomatic pressure on the Islamic Republic is not a major concern. But, for the Gulf states ― and also possibly for Israel ― this scenario is viewed as opening the door to stronger Iranian influence throughout the region. These countries believe that, following the interim agreement, the U.S. will fail to demonstrate sufficiently strong resolve to deter Iran from seeking regional hegemony.

In that case, tensions between Saudi Arabia and Iran will become more acute in the years ahead, emerging as the main destabilizing factor in the region. It is in this context that Turkey’s role as a secular power, one capable of transcending the sectarian divide, will become more important than ever. Turkish policymakers would be well advised to seize this opportunity to consolidate the country’s effectiveness as a regional actor, one that is uniquely positioned to stem the danger of a widening ― and potentially extremely dangerous ― rift.

By Sinan Ulgen

Sinan Ulgen is chairman of the Istanbul-based Center for Economics and Foreign Policy Studies and a visiting scholar at Carnegie Europe in Brussels. ― Ed.

(Project Syndicate)