U.S. "pre-positioning" for another military strike against Iran! Trump thus forgoes attending his son's wedding

The US-Iran situation is heating up, and the Trump administration has launched emergency military deployments. Trump missed his son’s wedding because of military operations, and US troops stationed in the Middle East are carrying out urgent mobilization.
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The United States is at a tipping point for a new round of military strikes against Iran. Insiders confirm that the Trump administration has activated an emergency military deployment mechanism, and some troops stationed in the Middle East are now undergoing urgent repositioning.

As of that afternoon, the final “GO / NO-GO” decision still had not been issued.

This upcoming military operation will also affect the White House’s most private schedule. On social media, Trump announced that—due to “special circumstances related to government affairs”—he will miss this weekend’s wedding of his son, Donald Trump Jr.

The president had originally planned to travel to a golf course in New Jersey for a vacation over the Memorial Day weekend, but ultimately decided to return to the White House to stay in charge.

Military developments show that the US Department of Defense and the intelligence community have begun canceling some officials’ weekend leave and updating the emergency recall lists for overseas military bases. At the same time, some US military units deployed in the Middle East are being rotated out of the combat zone in batches. This “advance and retreat” deployment pattern reflects the Trump administration’s delicate balancing act in its Middle East strategy.

Background on the escalation of the US-Iran situation

US-Iran relations have remained tense throughout 2026. The Trump administration has adopted a multi-pronged pressure strategy, covering oil sanctions, military deployments, and a strategic repositioning of Middle Eastern allied countries. The scope and timeline of this potential military strike are still being discussed intensely within the White House.

Market impact: a chain reaction in energy and safe-haven assets

Anticipation of military conflict between the US and Iran has begun to affect global markets. If the situation in the Persian Gulf escalates, it could have a significant impact on global energy supply chains:

• Crude oil prices: The Persian Gulf is one of the world’s largest crude oil producing regions; escalation may push Brent crude prices even higher
• US dollar and gold: Rising geopolitical risk typically increases safe-haven demand for the US Dollar Index (DXY) and for gold prices
• US stock market volatility: A Middle East risk premium could trigger short-term fluctuations in the S&P 500, especially in energy and defensive sectors

During the US-Iran crisis from 2019 to 2020, the reaction of Taiwan’s stock market showed that even global semiconductor giants are not fully insulated from the chain effects of Middle East developments. If similar conditions repeat in 2026, investors will need to reassess Taiwan’s defensive posture.