The Phone Call That Split the Gulf: How Trump Reignited the Saudi-UAE Rivalry

In November 2025, President Trump called UAE President Sheikh Mohammed bin Zayed Al Nahyan. What he said during that conversation is now the subject of three contradictory accounts. What is not in dispute is the result: the call accelerated what is now the most serious rupture between two US allies in the Gulf since the 2017 Qatar blockade.

The specific content of the call is disputed on all sides:

The ambiguity itself is revealing. If Trump accurately relayed MBS's request, it means Saudi Arabia was willing to use US sanctions as a weapon against its closest Gulf partner. If Trump exaggerated or distorted the message, it means the President of the United States inadvertently, or deliberately, set two allies against each other. If the US official's account is correct, it means Trump fabricated a Saudi request entirely. None of these scenarios reflects well on anyone involved.

What is clear is the effect. Senior Emirati officials felt betrayed. Within weeks, the relationship between Riyadh and Abu Dhabi, already strained, deteriorated into open confrontation.

To understand why one phone call could cause this much damage, you have to understand the personal relationship between the two men at the centre of the dispute.

In 2015-2016, Mohammed bin Zayed (MBZ) took on an informal mentoring role with the younger Mohammed bin Salman (MBS), guiding him on how to modernize Saudi Arabia's conservative kingdom. Friends of both men described their relationship as "somewhere between father and son and an older and younger sibling," according to Foreign Policy.

The relationship worked when MBS was consolidating power and needed guidance. It stopped working when he succeeded. As MBS grew more confident, he "began to chafe against UAE tutelage," resenting continued direction from a smaller, less powerful country. The dynamic inverted: Saudi Arabia, with its population of 36 million, $1 trillion sovereign wealth fund, and control of OPEC, was not going to take instructions from a city-state of 10 million.

The rivalry is also fueled by what analysts describe as a "recognition gap." Saudi Arabia takes major political risks and spends heavily, yet the UAE captures disproportionate returns in reputation, foreign investment, and global brand recognition. MBS's Vision 2030, with its plan to transform Riyadh into the region's business and finance hub, is openly modeled on the Dubai formula that MBZ built. The student is not just matching the teacher; he is trying to replace him.

Foreign Policy described it plainly: "Like many family feuds, it was partly about money and power but also, at a deeper level, jealousy and resentment."

The phone call did not create the Saudi-UAE rivalry. It accelerated a fracture that had been developing across at least five distinct fronts.

The most visible sign of the breakdown came in early February 2026 at Saudi Arabia's World Defense Show in Riyadh. Although some 30 Emirati entities were officially listed as exhibitors, Emirati presence was "almost nowhere to be found on the show floor," according to Breaking Defense. EDGE Group, one of Abu Dhabi's largest arms manufacturers, had its exhibition space converted into a coffee shop.

The boycott was not subtle. RANE Network analyst Ryan Bohl told Breaking Defense that the Emiratis were "trying to signal to Saudi Arabia their displeasure and some of the economic consequences for Saudi Arabia taking such a strident stance against the UAE's proxy."

The defense show snub is a leading indicator of broader economic consequences. The two countries share $30 billion in annual trade, with goods and executives moving constantly between them. Some UAE-based companies have reported increasing difficulty securing Saudi business visas, a seemingly minor administrative hurdle with significant commercial implications. When political relationships between Gulf states deteriorate, business relationships follow.

When asked about the rift on February 16, Trump said: "We can get it settled very easily. That's an easy one to settle." By all available reporting, the opposite is true.

The Trump administration has offered mediation, but per Foreign Policy, "both sides have balked." US officials have described the dispute as transcending typical diplomatic resolution because of "intense personal feelings" between MBS and MBZ. When Secretary Rubio was asked to intervene, he praised both nations' "diplomatic leadership" while urging restraint, a formulation that committed to nothing.

Trump's position is further complicated by financial entanglements. An Emirati investment firm has acquired nearly 50% of the Trump family's cryptocurrency company. The Saudi sovereign wealth fund has partnered with Jared Kushner on a reported $55 billion video game publisher acquisition. These ties create at minimum the appearance of conflicts of interest in any mediation effort.

The strategic cost is real. Trump's Middle East agenda requires unified Gulf support. He needs both countries to:

• - Support military pressure on Iran (the UAE reportedly refused a request in March to help "mop up" Houthis in Yemen without Saudi guarantees about the Islah militia)
• - Back the Gaza peace framework and Hamas disarmament
• - Expand Israel's normalization agreements with Arab states, including a potential Saudi-Israel deal
• - Stabilize Syria and Lebanon through coordinated Gulf support

None of this works if the two most important Gulf states are in open conflict with each other. The 2017-2021 Qatar blockade demonstrated how intra-Gulf crises inadvertently strengthen Iranian influence by diverting diplomatic resources and fracturing the security coalition. The current Saudi-UAE rift risks repeating that pattern at a moment when Iran is weakened and US military assets are positioned nearby.

The Saudi-UAE feud is not a temporary diplomatic spat. It is a structural realignment of the Gulf's two most powerful economies, driven by personal rivalry, competing visions for regional leadership, and proxy wars across at least three countries. The phone call accelerated it, but the underlying tensions have been building for years.

For businesses and investors, the practical implications are already visible. Defence contracts are being affected. Visa restrictions are tightening. Corporate headquarters decisions between Riyadh and Dubai now carry geopolitical baggage. OPEC+ coordination, already fragile, faces a new stress point. The Abraham Accords, once a potential platform for Saudi-Israeli normalization, are being weaponized by both sides in an information war.

Washington Post columnist David Ignatius warned that Saudi encouragement of attacks on the UAE for normalizing with Israel represents "geopolitical self-sabotage," noting that "no country has a bigger stake in stopping the spread of Islamic extremism than Saudi Arabia...the kingdom is playing with fire."

The most useful historical parallel is not any specific Gulf crisis but the broader pattern of how alliances fracture: slowly at first, through accumulated grievances and competing interests, and then suddenly, through a catalytic event. Trump's phone call was the catalytic event. What follows depends on whether MBS and MBZ can separate the personal from the strategic, and whether Washington can find a way to mediate without the financial conflicts that undermine its credibility as an honest broker.