Did the World Change Overnight? In July 2026, news of US airstrikes on Iran shocked the world, triggering severe volatility in international crude oil prices. Brent crude futures briefly surged above US$120, causing oil prices to soar. This sudden military action not only sent financial markets into a sea of green, but also directly ignited concerns over global inflation. What caused the US-Iran conflict to escalate once again? How far-reaching will the impact of these airstrikes be on the global economy? From the perspective of an experienced investor, this article provides a complete analysis of the origins and development of the US-Iran conflict, as well as the actual impact of this crisis on the global economy and your daily life.
This conflict was not accidental, but the result of accumulated tensions between the US and Iran over multiple issues, including the nuclear agreement, regional influence, and proxy wars. Understanding how the situation developed is the crucial first step in assessing future market movements.
Since late 2025, the Iran-backed Houthi armed group in Yemen has frequently attacked shipping routes in the Red Sea, placing pressure on global supply chains. In 2026, US intelligence agencies repeatedly accused Iran’s Islamic Revolutionary Guard Corps of directly participating in planning drone attacks against oil facilities belonging to US allies in the Persian Gulf region, causing casualties among several US contractors. Although Tehran categorically denied the allegations, Washington believed it had obtained conclusive evidence and regarded this as an uncrossable “red line”. A series of incidents completely destroyed the foundation of mutual trust between the two sides, severely limited the scope for diplomatic mediation, and ultimately pushed the situation to the brink of military conflict.
The military operation, code-named “Midnight Hammer”, began in the early hours of the morning, Iran time. According to information released by the Pentagon, the US military deployed B-2 stealth bombers and launched dozens of “Tomahawk cruise missiles” from Arleigh Burke-class destroyers patrolling the Persian Gulf. The strikes primarily targeted:
The operation demonstrated the US military’s precision-strike and surgical warfare capabilities. It was intended to weaken Iran’s asymmetric warfare capabilities while avoiding large-scale civilian casualties and limiting the risk of further escalation.
Following the airstrikes, all parties responded swiftly:
The military conflict itself did not directly damage any major oil-producing facilities, yet oil prices surged by more than 15% overnight. This reflects the market’s extreme fear of future supply disruptions, with the core concern pointing directly to the chokepoint of global oil transportation: the Strait of Hormuz.
The Strait of Hormuz is the only waterway connecting the Persian Gulf and the Gulf of Oman, measuring only about 33 kilometers at its narrowest point. According to data from the US Energy Information Administration (EIA), approximately one-fifth of the world’s oil supply and more than one-third of its liquefied natural gas (LNG) must pass through this route. If Iran were to take extreme measures to block the strait, even a brief disruption could paralyze global energy markets. This makes the Strait of Hormuz Iran’s most powerful geopolitical deterrent and the market’s most sensitive pressure point.
Financial markets trade on “expectations”. After the airstrikes, traders were not concerned about the immediate losses, but about the worst-case scenarios that could unfold in the future:
This fear-driven market reaction caused oil prices to rise far more sharply than the actual changes in supply and demand fundamentals. Investors seeking a deeper understanding of crude oil trading mechanisms can refer to How to Buy Crude Oil Futures? 2026 Beginner’s Guide to Oil Futures Investing, Oil Price Trend Analysis, and Global Impact for more professional insights.
Rising oil prices involve far more than simply feeling the pain when filling up your car. As the lifeblood of the modern economy, fluctuations in crude oil prices ripple through every corner of the economy, ultimately affecting everyone’s wallet.
With the threat of war hanging over the market, risk-aversion has risen rapidly. The Dow Jones Industrial Average has suffered sharp declines for several consecutive sessions, while oil-sensitive sectors such as airlines, tourism, and automobiles have been hit particularly hard. Capital has poured into traditional safe-haven assets, including gold, the US dollar, and US Treasury bonds. In this highly uncertain environment, investors should reassess their asset allocation and consider how to address geopolitical risks. Historical experience shows that remaining calm and positioning investments according to a clear strategy during turbulent times is far wiser than panic selling.
The transmission path of rising oil prices is clear, and this inflationary storm is approaching step by step:
For Asian economies such as Taiwan, Japan, South Korea, and Thailand, which are highly dependent on imported energy, the impact of this oil price shock is particularly severe. These economies must not only contend with imported inflation, but may also see the export competitiveness of their manufacturing sectors weakened by rising energy costs. Governments are closely monitoring the situation and may introduce measures such as electricity subsidies and lower energy taxes to ease the impact on people’s livelihoods. However, in the long term, transforming and diversifying their energy structures will become an even more urgent priority.
The market’s attention is focused on the next 48 hours. Iran’s response will determine whether this crisis can be contained within a limited scope. Several key factors deserve close attention from investors.
Iran is well aware that it has little chance of prevailing in a direct confrontation with the US military. Therefore, its retaliatory measures may be more “asymmetric” and involve greater use of “proxies”. In addition to the previously mentioned blockade of the Strait of Hormuz, potential retaliatory measures include:
To stabilize market confidence, the US president has announced plans to coordinate with allies on the release of Strategic Petroleum Reserves (SPR). Under the International Energy Agency (IEA) mechanism, member countries collectively maintain substantial emergency reserves that can be released into the market during severe supply disruptions. In the short term, releasing SPR can effectively fill market shortages and help cool prices. However, this remains a temporary measure that addresses the symptoms rather than the root cause. The ultimate direction of oil prices will still depend on how the US-Iran conflict develops and whether navigation through the Strait of Hormuz can remain unobstructed.
The US airstrikes on Iran once again highlight the enormous influence of geopolitics on the global economy. This was not merely a military operation, but a perfect storm affecting global energy supplies, financial markets, and the direction of inflation. From the precision strikes of Tomahawk missiles and market fears surrounding the Strait of Hormuz to the response strategies adopted by governments, every link is closely interconnected. The future remains highly uncertain. Both professional investors and ordinary consumers need to remain highly vigilant, closely monitor subsequent developments, and prepare for the potential economic impact.
A: According to official US statements, the airstrikes were a “self-defensive counterattack” in response to a series of recent attacks planned and supported by Iran’s Islamic Revolutionary Guard Corps against US personnel and facilities in the Middle East. The US stated that it had conclusive evidence of Iran’s direct involvement and regarded the operation as necessary to protect US citizens and national interests.
A: Ordinary people can respond to rising oil prices in several ways. First, they can conserve energy by using public transportation more frequently, reducing unnecessary driving, and choosing energy-efficient appliances. Second, they can plan their spending by allocating more of their budget to essential expenses and reducing non-essential consumption. Finally, they can review their personal finances and consider allocating some funds to inflation-resistant assets, such as gold or Treasury Inflation-Protected Securities (TIPS).
A: In addition to crude oil futures themselves, the stocks most severely affected are typically those of fuel-intensive industries such as airlines, cruise tourism, and automobile manufacturing. Conversely, traditional safe-haven assets such as gold, the US dollar, the Swiss franc, and US Treasury bonds are likely to attract demand. Stocks related to alternative energy sources (such as solar and wind power) as well as defense companies, may also rise as the market anticipates an acceleration in the energy transition and increased demand for military equipment.
A: This depends on the scale and duration of the conflict. If the situation de-escalates quickly without materially affecting shipping through the Strait of Hormuz, the “risk premium” driven by market panic may fade within a few weeks. However, if the conflict expands and causes prolonged supply chain disruptions, high oil prices could persist for several months or even longer, until global supply and demand reach a new equilibrium.
