US Secretary of State Marco Rubio departs with Bahrain’s Foreign Minister and Chairman of the GCC Ministerial Council session Abdullatif bin Rashid Al Zayani after a meeting with foreign ministers of the Gulf Cooperation Council Member States at The Ritz-Carlton Bahrain during Rubio’s visit to the Middle East to discuss the interim deal between the US and Iran with Arab Gulf allies, in Manama, Bahrain, June 25, 2026. Photo: REUTERS/Eric Lee/Pool

US Secretary of State Marco Rubio told Gulf allies on Thursday that any deal with Iran would take their interests into account, as he wrapped up a Middle East trip aimed at winning over regional partners with deep reservations about the preliminary accord.

Speaking at a meeting of Gulf Arab foreign ministers in Bahrain — home to the US Navy’s Fifth Fleet — Rubio said Washington was seeking an enduring peace with long-time foe Iran that would not come at the expense of the security of allies in the oil-rich region, many of whom see the deal as too soft after coming under Iranian attack during the conflict.

Iran fought two of the world’s most powerful armies – the US and Israel – during the conflict and took effective control of the vital Strait of Hormuz, heavily disrupting oil flows and rattling global energy markets and the wider economy.

He told reporters that Gulf allies shared some very serious concerns and that they wanted to be informed of every step of the peace accord, which includes provisions on Hormuz.

If Iran threatens or blocks ships in the Strait of Hormuz, “then we’re going to have a problem,” Rubio said, having earlier told ministers that “no country on Earth has the right to charge for the use of international waterways” and that fees for shipping would never be part of any deal.

Rubio said he did not discuss a $300 billion reconstruction fund for Iran that is part of the peace proposal. Gulf states fear Iran would use that money to revive its military capacity.

Bahrain’s Foreign Minister Abdullatif bin Rashid Al Zayani, who chaired the gathering, welcomed Oman’s announcement of a corridor for the safe passage of vessels through the strait.

Oman told the meeting that future arrangements for the Strait of Hormuz would not involve transit tolls.

REASSURING WARY REGIONAL ALLIES

Rubio‘s three-day tour of the Gulf was the first high-level diplomatic mission since the US-Iran framework agreement last week to end the conflict, which started on Feb. 28 with US-Israeli strikes on Iran.

At his previous stops in the UAE ‌and Kuwait, Rubio sought to assure officials that the proposed deal ‌was not overly favorable to Iran, which struck several Gulf states during the war.

“We’re not going to do anything that undermines the security of our allies, our longstanding allies in the region,” he ​told reporters in Kuwait.

US President Donald Trump said on Tuesday that Iran had agreed ​to nuclear inspections into “infinity,” while Tehran said it had made no such concession in negotiations.

The two countries, which ended ‌a first round of negotiations in Switzerland on Monday, have also offered conflicting accounts about financial incentives for Iran, control of the Strait of Hormuz, and Israel’s parallel war in Lebanon.

All six Gulf Cooperation Council (GCC) nations – Saudi Arabia, Qatar, Oman, the United Arab Emirates, Bahrain, and Kuwait – are strategic US ⁠allies that offered some degree of logistical support to Washington during the war, and all were buffeted by Iranian airstrikes as a result.

They make up the backbone of America’s security architecture in the Middle East, and any countries rethinking their security relationship with the US could have a significant impact on US military strategy in the region.

The draft US-Iran agreement includes no limits on Iran‘s ballistic missiles, a proposed $300 billion reconstruction fund, and provisions that could expand Tehran’s regional influence and control over critical oil shipping lanes.

Some US Gulf allies are privately concerned that the interim deal could open the door to US normalization with Iran, a predominantly Shi’ite country that most Sunni-led GCC states consider their main adversary.