I have said for years that people misunderstand the global monetary system. It is not driven by trade balances. It is driven by capital flows and access to dollar liquidity. The discussion of a currency swap between the United States and the United Arab Emirates shows how the system actually works under stress.
The United States is now considering a currency swap with the UAE as tensions around Iran rise. This is not about trade policy. It is about liquidity. When uncertainty increases, capital begins to move. Countries need dollars to stabilize their financial systems and maintain confidence.
Currency swaps are often presented as technical tools. In reality, they are lifelines. They allow a foreign central bank to access U.S. dollars directly. This bypasses stressed markets and helps prevent a liquidity crisis that could trigger capital flight.
This is exactly what happens during geopolitical conflict. The Iran situation has raised concerns about the Strait of Hormuz. That region is critical for global energy flows. When energy is threatened, markets react immediately. Currency volatility rises and capital seeks safety.
The UAE is a strong economy, but it is still exposed. Its currency is pegged to the U.S. dollar, meaning it must maintain sufficient dollar reserves to function properly. When global stress increases, even strong economies seek direct dollar access. That is why a swap line becomes important.
There is also a geopolitical layer. Currency swaps are tools of influence. When the United States provides dollar liquidity, it reinforces alignment. If access is restricted, countries look for alternatives. That can include increasing use of other currencies like the Chinese yuan. The UAE has stated it would consider using the yuan if the U.S. denies them the opportunity to swap, but the issue has become polarizing.
“The war in Iran has already cost us dearly,” Sen. Chris Van Hollen, D-Md. Said to Treasury Secretary Bessent. “In addition to lives lost, we’re talking about over a billion dollars a day in taxpayer money, we’re talking about higher gas prices, higher prices overall, and now we understand that the UAE is asking you to provide them a swap line through the Exchange Stabilization Fund.”
The key point people miss, because this is not about whether a country is rich, it is about whether it has access to dollars when the system comes under stress. This is precisely what I have always explained about currency swaps, because they are not favors or political gestures, they are lifelines, and when a country fears losing dollar inflows, especially one tied to oil exports through a chokepoint like the Strait of Hormuz, it must secure liquidity or risk instability in its currency, its banking system, and ultimately its entire economy.
This is also where many misunderstand de-dollarization. The world is not abandoning the dollar. It is trying to create options as nations want flexibility as geopolitical risks rise. Currency swaps are central to that process because they determine access to liquidity.
Confidence drives markets. When confidence falls, capital moves quickly. Without liquidity, currencies weaken, and systems come under pressure. Governments respond with tools like currency swaps to restore stability.
The fact that this swap is being considered tells you pressure is already building. These agreements are not routine. They are signals that policymakers expect volatility and a continued crisis.