The military strike against Iran launched by the Trump administration in 2026 was a classic example of a financial risk event driven by geostrategic miscalculation. The US was convinced that its absolute military superiority allowed it to quickly achieve its strategic goals through a short-term, controllable conflict, ending years of tensions surrounding the Iranian nuclear issue without triggering large-scale geopolitical turmoil or market volatility. However, this "quick victory" geopolitical adventure ultimately failed completely. The 100-day standoff severely disrupted the global oil supply chain, amplified the vulnerability of commodity markets, and sowed the seeds of long-term oil price volatility and global financial instability.



On February 28, 2026, the United States officially launched a large-scale military strike against Iran, focusing on Iranian missiles and offshore naval facilities. The aim was to force Iran to compromise on nuclear issues and regional affairs through hardware destruction, thereby rapidly reshaping the Middle East landscape. Initially, the US anticipated that the war would end within weeks and the regional energy situation would stabilize. However, it severely underestimated the geopolitical complexity of the Middle East, Iran's strategic resilience, and the strong transmission effect of shipping fluctuations in the Strait of Hormuz on the global oil and gas market.

The unfolding conflict completely overturned the US's expectations of a swift victory, confirming the core logic that military superiority cannot be equivalent to geopolitical and financial stability. Five weeks into the conflict, while the US military continued to damage Iranian military hardware, it failed to force a strategic retreat. Six weeks later, the short-term swift victory plan collapsed, and limited military operations descended into a protracted stalemate. This 107-day conflict has transformed from a regional military contest into a core risk event impacting the global energy pricing system, subjecting the already tightly balanced international crude oil market to a dual shock of sentiment and fundamentals.

This crisis was not sudden; prior US military probing had already sown the seeds of market uncertainty. The US "Midnight Hammer" strike in June 2025 failed to destroy Iran's core nuclear capabilities, and Iran completed the transfer of equipment and nuclear materials ahead of schedule, leading the market to prematurely conclude that the US-Iran rivalry was unlikely to end, keeping Middle Eastern energy risk premiums persistently high. It is noteworthy that before the outbreak of hostilities, diplomatic channels brokered by Oman were still open, and Iran was willing to make substantial concessions on uranium enrichment controls and international inspection mechanisms, possessing the diplomatic foundation for low-cost market stabilization. However, the US abandoned the low-risk negotiation path, insisting on military adventurism and proactively triggering a crisis of uncertainty in the global energy market.

Iran, tempered by long-term international sanctions, possesses exceptional strategic resilience. External military strikes can only damage surface-level facilities and cannot shake its core strategic stance. As the conflict stalemates, the US strategic objectives have been continuously downgraded: from completely eliminating the Iranian nuclear threat to weakening nuclear facilities and restricting uranium enrichment activities, ultimately focusing solely on maintaining stable navigation in the Strait of Hormuz. This series of compromises in US objectives means that this military adventure has completely lost its strategic value, instead continuously increasing the geopolitical risk premium in the Middle East and exacerbating panic in global energy markets.

The most significant economic impact of this conflict was the dramatic fluctuations in international oil prices and the surge in the fragility of the energy market. The Strait of Hormuz, carrying over 30% of global seaborne crude oil trade, remained under constant pressure. Shipping disruptions directly triggered sharp fluctuations in oil prices, which at one point approached $120 per barrel during the conflict, significantly pushing up costs across the global supply chain and creating imported inflationary pressures worldwide. During the protracted conflict, oil prices exhibited characteristics of "high volatility, high premiums, and weak stability." Military escalation triggered sharp price jumps, while expectations of a short-term ceasefire led to rapid corrections. These erratic fluctuations completely disrupted global energy pricing, corporate cost control, and the pace of inflation regulation in various countries. Even minor adjustments to OPEC+ production could not offset the market impact of geopolitical risks.

In June 2026, the Trump administration, mired in a war and public opinion crisis, chose to end the 100-day standoff with a temporary memorandum of understanding. This peace agreement was not a definitive peace treaty, but rather a typical tactical stop-the-fire arrangement aimed at mitigating the crisis and stopping the bleeding, characterized by its highly temporary and unstable nature. Objectively speaking, this was a result of a passive compromise by both sides: for the United States, a prolonged war of attrition would exacerbate domestic inflation and deplete fiscal and political capital; a ceasefire was the optimal choice to cut losses, exit the conflict, and stabilize public opinion and markets. For Iran, this war was a defensive victory; despite damage to some facilities, it preserved its core interests in nuclear research and development and regional competition, gaining a respite at minimal cost. Overall, this peace agreement resulted in no victor, no reshaping of rules, and no eradication of conflicts; it merely paused the pace of the conflict and did not eliminate underlying risks, inherently possessing extreme financial and geopolitical fragility.

From a financial perspective, the structural flaws in the agreement are the core root cause of subsequent oil price fluctuations. First, the agreement contains a serious regulatory vacuum, failing to cover core issues such as Iranian nuclear production capacity control, ensuring navigation in the Taiwan Strait, and de-escalating military tensions. It lacks rigid compliance clauses and a penalty mechanism for breach of contract, relying solely on temporary tacit understandings between the two sides, making the ceasefire vulnerable to collapse at any time. Second, the demands of the two sides are completely contradictory: the US seeks only short-term damage control and market stabilization, while Iran seeks only a temporary halt to attacks to build up its strength. The core game and contradictions remain unresolved, and the foundation of geopolitical antagonism remains solid.

This vulnerability directly fueled a rigid expectation of a second rebound in oil prices, completely reshaping the logic of crude oil pricing. The subsequent decline in oil prices after the agreement was implemented was merely a short-term emotional correction, not a stabilization of fundamentals. The 100-day conflict depleted global crude oil inventories, compressed supply elasticity, and, coupled with a systemic increase in geopolitical risk premiums, permanently shifted the central oil price upward. Compared to the pre-war benchmark price of $67 per barrel, the current oil price above $80 retains a permanent geopolitical premium of over 20%, which will not disappear with the ceasefire.

The current crude oil market has entered a sensitive mode of "weak positive factors and strong negative factors." The fragility of the agreement means that any sporadic friction or navigation disruption in any region could trigger a gap-up in oil prices. Coupled with the fact that OPEC+'s capacity adjustment space has reached its limit and global spare capacity is insufficient, the market's ability to withstand supply shocks has been significantly weakened, and the risk of a renewed surge in oil prices and a rebound in imported global inflation remains high.

Overall, this 100-day geopolitical adventure has thoroughly demonstrated that military power cannot reshape the energy geopolitical landscape; it only creates long-term financial instability. The US's quick-win strategy has completely failed, not only failing to achieve its initial strategic objectives but also pushing up global oil prices and solidifying market vulnerabilities. This winless, phased compromise has neither repaired the Middle East energy supply chain nor restructured the regional security landscape. Under the triple pressures of fragile agreements, lingering conflicts, and tight supply and demand, the global commodity market has officially entered a new phase characterized by normalized geopolitical risks, prolonged oil price volatility, and normalized financial vulnerabilities. This will have a long-term impact on global inflation, monetary policy, and the operations of real businesses, becoming the most profound financial consequence of this US-Iran conflict.