For the first time, Turkey, Saudi Arabia, Egypt and Pakistan will meet Britain, France and Germany for security-focused talks. The meeting comes as attacks on ships and regional energy infrastructure continue and oil prices have reached their highest level in five months.
The Istanbul meeting could mark a shift from regional consultations toward broader security coordination. It follows months of efforts by regional states to build cooperation against threats from the Islamic Republic, particularly attacks by the Iran-backed Houthis.
Turkey, Saudi Arabia and Pakistan — the three members of the Mecca defense pact — will all attend and have committed to using their military capabilities to defend Saudi Arabia. Egypt is also considering military support for Riyadh.
The three European powers are now joining the talks with concerns of their own, particularly over energy.
The platform could lead to a form of division of labor in the Iran war, operating in parallel with US and Israeli military pressure on the Islamic Republic and focused primarily on containing the Iran-backed Houthis.
From regional consultations to defense cooperation
Turkey, Egypt, Pakistan and Saudi Arabia have held regular consultations since March following Houthi threats in Bab al-Mandab. The grouping has become known as the R4.
The four countries have emphasized direct regional involvement in resolving crises and in recent months have adopted common positions on the Iran war, Palestine and Saudi security.
Alongside these diplomatic efforts, Turkey, Saudi Arabia and Pakistan have expanded defense cooperation through the Mecca pact. Under the agreement, an external armed attack on one member is considered an attack on all three.
Officials from the three countries agreed on August 31 to establish a joint secretariat and expand defense cooperation. Their defense committee decided on October 5 to make agreed forces and military capabilities available for rapid deployment to Saudi Arabia.
The four R4 countries also condemned Iran-backed Houthi attacks on Saudi Arabia in an October 11 statement and backed Riyadh’s measures to counter the threats.
Turkey is meanwhile pursuing parliamentary approval of the Mecca pact, while Egypt’s parliament is due to decide on Monday, October 26, whether to deploy forces in military support of Saudi Arabia. Egypt is not a member of the pact, but the prospect of it joining is being seriously considered.
Despite these developments, the countries continue to emphasize a diplomatic solution to the Iran-US war, and some remain in contact with Tehran.
While seeking to prevent the war from spreading, they are also moving closer to joint defensive action against Iran-backed Houthi attacks. These parallel efforts could help contain the crisis and pave the way for a new regional security arrangement, but could also draw the countries deeper into the war and create domestic political tensions.
Containing the Iran-backed Houthis on a parallel track
Protecting critical infrastructure is a central priority for Saudi Arabia in its cooperation with Turkey and Pakistan.
Iran-backed Houthi attacks on Saudi economic and military facilities and insecurity in Bab al-Mandab have caused direct damage while putting pressure on the kingdom’s energy exports and investment plans.
Strengthening Saudi Arabia’s defensive capabilities could reduce some of that vulnerability. But the impact of the new cooperation may extend beyond protecting Saudi facilities.
Saudi defenses against such attacks currently depend on direct US support. A greater role for Turkey and Pakistan, combined with coordination among the four regional countries, could reduce that dependence and allow Washington to devote more resources and attention to the Iran war.
From this perspective, two parallel tracks are taking shape. The United States and Israel are pursuing direct military pressure on Iran, while the countries represented in Istanbul are cooperating to contain the regional consequences of the war.
The two tracks, however, do not constitute a single coalition. Despite their political and security ties with the United States, the regional countries have avoided joint arrangements with Israel, preventing the two approaches from becoming fully integrated.
Cooperation with Washington does not necessarily mean participation in Israel’s strategy. These countries can oppose an expansion of the war against Iran while acting to contain threats arising from it, particularly Houthi attacks.
The practical result could be a form of division of labor even without a formal agreement between the US-Israel camp and the R4.
Iran’s leverage and the risk of diminished influence
The emerging arrangement has particular significance for Iran. If the cooperation succeeds and takes on a military dimension, it would amount to action against an ally of Tehran.
For now, Iran is seeking to raise the cost of continuing the war for the United States and regional countries by leveraging its geographic position in the Strait of Hormuz and its support for the Houthis. Tehran has also promised to respond to actions against its interests.
Alongside maintaining these forms of leverage, Tehran is using diplomacy in an effort to turn them into political gains.
Iranian Foreign Minister Abbas Araghchi has said a seven-day proposal for restoring normal shipping through the Strait of Hormuz was conveyed through Qatar, with implementation conditional on Tehran’s demands being met.
On Yemen, he has said Iran is prepared to mediate between Saudi Arabia and Ansarullah while rejecting the assertion that the Houthis take direct orders from Tehran.
The two positions indicate that Tehran wants to preserve its ability to turn regional pressure into political leverage. Continued pressure, however, could produce a different outcome.
Governments facing attacks on infrastructure and disruption to maritime routes are moving toward closer defense cooperation to reduce their vulnerability, potentially increasing their capacity to confront Iran.
Crucially, reducing the impact of regional pressure does not necessarily require the military defeat of Iran-aligned forces.
If Saudi Arabia can better protect its infrastructure with help from new partners and the threat to shipping in Bab al-Mandab diminishes, part of Tehran’s bargaining power would be reduced.
Its leverage in the Strait of Hormuz would not be directly affected by these arrangements and would remain in Tehran’s hands, though it could become more fragile than before. Much will depend on Tehran’s response to actions taken by the countries participating in the platform.
Ansarullah, however, is an actor with demands of its own, and ending the Yemen war would require a separate agreement.
Continued contacts between Turkey, Pakistan and Egypt and Tehran also indicate that these governments still see a role for the Islamic Republic in reducing tensions. Anadolu Agency has reported that Pakistan’s army chief asked Tehran to use its influence to halt Houthi attacks on Saudi infrastructure.
Europe and the future of regional security
The involvement of Britain, France and Germany could broaden the scope of this emerging cooperation.
Their involvement reflects concerns about the wider consequences of the war, disruption to shipping through the Strait of Hormuz and, above all, energy supplies.
The European countries are joining the R4 states in an effort to address those concerns, but their involvement would also increase NATO’s presence in the region and could potentially lead to an expanded military role.
For Turkey, hosting the meeting provides an opportunity to strengthen its position in regional diplomacy. Saudi Arabia can combine the defensive support of regional partners with broader European consultations.
The European countries, meanwhile, are engaging governments that cooperate with the United States while maintaining political access to Tehran, allowing them both to maintain channels with Iran and signal their opposition to its actions.
Continued European engagement with the R4 could produce a multilayered structure linking political cooperation among the four regional countries, the defense commitments of three of them and diplomatic coordination with Europe.
Such a structure would not immediately replace the US presence and would not necessarily align with Israel’s strategy, but it could give regional countries a larger role in managing crises — a role Turkish President Recep Tayyip Erdogan has strongly pursued.
From this perspective, the Istanbul meeting may signal an emerging division of labor between two parallel tracks: US and Israeli military pressure on Iran on one side, and efforts by regional countries, with European participation, to contain Tehran’s regional proxies on the other.
While such cooperation could help reduce tensions, it also carries the risk of widening the war — a shared concern that has made all sides cautious about taking major military action.