US Secretary of State Marco Rubio has arrived in Manama, the capital of Bahrain and home to the US Navy’s Fifth Fleet, to complete a swift three-day diplomatic tour across the Gulf region. His mission is to garner support from key Gulf allies for the Trump administration’s preliminary peace deal with Iran, despite widespread apprehension among these partners about the potential risks of the agreement.
Rubio’s visit follows earlier stops in the United Arab Emirates and Kuwait, where he has consistently sought to reassure Gulf states that the US remains committed to their security. He emphasized that the administration will not take any actions that compromise the safety of its longstanding regional allies.
However, the proposed deal faces significant skepticism due to conflicting statements from Washington and Tehran. President Donald Trump asserted that Iran agreed to unlimited nuclear inspections, a claim Iran has firmly denied. The draft memorandum of understanding also references a substantial $300 billion reconstruction fund, with suggestions that regional countries might contribute financially. Rubio, however, clarified that no such financial requests have been made to Gulf partners at this stage.
Strategically, the agreement raises concerns as it does not impose limits on Iran’s ballistic missile program and grants Tehran considerable influence over the Strait of Hormuz, a vital passage for global energy shipments. These factors have heightened unease among Gulf Cooperation Council (GCC) members.
The six GCC countries—Saudi Arabia, the UAE, Qatar, Oman, Kuwait, and Bahrain—are crucial to the US military presence in the Middle East. Several of these nations recently supported US operations and endured Iranian airstrikes firsthand. The Sunni-led monarchies remain deeply wary of a strengthened Shi’ite Iran, particularly in Bahrain, where a Sunni ruling family governs a Shi’ite majority population. Officials there fear that easing sanctions on Iran could enable Tehran to intensify efforts to destabilize the country internally.
Any alteration in the Gulf states’ perception of their security alliance with the US could lead to a major shift in American military strategy throughout the region, underscoring the high stakes of Rubio’s diplomatic efforts in Bahrain.