A military conflict between the United States and Iran under a second Trump administration would almost certainly accelerate the global realignment already underway, pushing dozens of nations in the Middle East, Central Asia, Africa, and Latin America closer to Beijing and Moscow. The logic is straightforward: countries that depend on Iranian oil, maintain trade relationships across the Persian Gulf, or simply refuse to be drawn into another American-led war would seek alternative security and economic partnerships with powers that are not bombing their neighbors. We saw a preview of this dynamic during the Iraq War, when U.S.
credibility in the developing world cratered and China quietly expanded its Belt and Road footprint across precisely the nations Washington was ignoring. This article examines why a Trump-Iran war would function as a geopolitical gift to China and Russia, which countries are most likely to shift alignment, what the economic consequences would look like for American consumers and taxpayers, how energy markets would be disrupted, and what historical precedents tell us about the long-term costs of Middle Eastern military adventures. It also addresses the specific financial mechanisms through which wartime disruption flows back to ordinary Americans, from gas prices to federal debt, and why the accountability infrastructure for tracking these costs remains dangerously weak.
Table of Contents
- Why Would a U.S.-Iran War Push Countries Toward China and Russia?
- Which Countries Are Most Likely to Shift Alignment Away from Washington?
- The Energy Market Chaos That Would Follow a U.S.-Iran Conflict
- What the Iraq War Teaches Us About the Long-Term Costs of Middle Eastern Conflicts
- The Accountability Gap in Tracking War Costs and Geopolitical Consequences
- How China Is Already Positioned to Exploit American Overreach
- What a Post-Conflict Realignment Would Mean for Ordinary Americans
- Conclusion
- Frequently Asked Questions
Why Would a U.S.-Iran War Push Countries Toward China and Russia?
The fundamental dynamic is not ideological but transactional. Most countries in the Global South do not pick sides based on democratic values or authoritarian sympathies. They pick sides based on who is offering trade deals, infrastructure investment, and diplomatic stability without preconditions. China has spent two decades building exactly this kind of no-strings-attached economic architecture through the Belt and Road Initiative, the Asian Infrastructure Investment Bank, and bilateral currency swap agreements. A U.S.-Iran war would supercharge every one of these Chinese advantages by making Washington look like the destabilizing actor in the region. Consider the 2023 China-brokered normalization between Saudi Arabia and Iran. That diplomatic achievement, which would have been unthinkable a decade earlier, signaled to the entire Middle East that Beijing could deliver stability while Washington delivered drone strikes and sanctions. A full-scale military conflict with Iran would validate that narrative completely.
Countries like Iraq, which maintains close ties to both Washington and Tehran, would face impossible pressure to choose sides, and many would quietly choose the side that is not dropping bombs on their neighbor. Turkey, a NATO member already drifting toward a more independent foreign policy under Erdogan, would have every incentive to deepen its economic ties with Russia and China rather than support another american war on its doorstep. Russia benefits from a different angle entirely. Moscow’s primary interest is in keeping oil prices high and Western attention divided. A U.S.-Iran war accomplishes both objectives simultaneously. Every dollar the Pentagon spends in the Persian Gulf is a dollar not spent countering Russian influence in Eastern Europe or Africa. Every barrel of Iranian oil taken off the market by military disruption raises the price of Russian crude. The Kremlin learned from the Iraq War that American military overreach is the single best recruiting tool for anti-Western coalitions, and a Trump-Iran conflict would provide years of propaganda material.
Which Countries Are Most Likely to Shift Alignment Away from Washington?
The nations most vulnerable to realignment fall into three categories: Iran’s direct trading partners, energy-dependent economies that cannot afford oil supply disruptions, and countries already hedging between Washington and Beijing. India, which has historically purchased significant quantities of Iranian oil and maintains an independent foreign policy, would face enormous pressure to distance itself from Washington if the U.S. launched an unprovoked military campaign. New Delhi already refused to join Western sanctions against Russia after the Ukraine invasion. A war with Iran would push India further toward the BRICS framework and away from the Quad alliance that Washington has cultivated as a counterweight to China. However, the alignment shift would not be uniform, and it is important to recognize the limits. Countries with deep security dependencies on the United States, such as Japan, South Korea, and the Gulf monarchies, would be unlikely to formally break with Washington even if they privately opposed the war.
The shift would be more pronounced among nations that already maintain diversified partnerships: Brazil, South Africa, Indonesia, Nigeria, Egypt, and the Central Asian republics. These countries have been systematically courted by Beijing with infrastructure loans, technology transfers, and diplomatic support at the United Nations. A war would simply remove whatever remaining hesitation they had about moving closer to the Chinese orbit. The African continent deserves particular attention. China is already the largest bilateral lender to African nations, and Russia has expanded its military presence through Wagner Group deployments and arms sales. A U.S.-Iran war would consume American diplomatic and military bandwidth, leaving the field even more open for Chinese and Russian engagement. If Washington cannot simultaneously fight a war in the Persian Gulf and compete for influence in Lagos, Nairobi, and Addis Ababa, it will lose the competition by default.
The Energy Market Chaos That Would Follow a U.S.-Iran Conflict
Iran controls one side of the Strait of Hormuz, through which approximately 20 percent of the world’s oil supply passes daily. even a limited military conflict that did not directly close the strait would cause insurance premiums for tanker traffic to skyrocket, effectively reducing supply and spiking global oil prices. During the 1980s Tanker War between Iran and Iraq, oil prices became wildly volatile, and the U.S. ended up reflagging Kuwaiti tankers and engaging in direct naval combat to keep shipping lanes open. A modern conflict would be far more disruptive because global supply chains are more integrated and the margin between oil supply and demand is thinner. American consumers would feel the impact within days.
Gas prices would surge, likely exceeding six dollars per gallon in many markets, and the inflationary pressure would ripple through every sector of the economy that depends on transportation, which is essentially all of them. Groceries, manufacturing inputs, shipping costs, and airline tickets would all increase. The Federal Reserve would face the impossible choice of raising interest rates to combat inflation, which would slow the economy, or holding rates steady and allowing prices to spiral. This is the same stagflation trap that plagued the U.S. economy during the 1970s oil shocks. The irony is that high oil prices would directly benefit Russia, America’s principal geopolitical rival. Moscow’s federal budget is heavily dependent on energy revenues, and every ten-dollar increase in the price of a barrel of crude translates into billions of additional dollars for the Russian treasury. A Trump-Iran war would effectively subsidize the Russian war machine while draining the American one, a strategic outcome so counterproductive that it defies rational analysis.
What the Iraq War Teaches Us About the Long-Term Costs of Middle Eastern Conflicts
The Iraq War provides the closest historical parallel, and the lessons are devastating. The Costs of War Project at Brown University has estimated that the post-9/11 wars cost the United States approximately 8 trillion dollars when interest on war-related borrowing is included. The Iraq War alone displaced millions of people, destabilized the entire region, and created the power vacuum that gave rise to ISIS. More relevant to the current analysis, the Iraq War consumed so much American attention and resources that China was able to expand its global influence largely unchallenged during the 2000s and early 2010s. The comparison with a potential Iran conflict is even more alarming. Iran’s population is roughly two and a half times that of Iraq at the time of the 2003 invasion.
Its military is more sophisticated, its geography more defensible, and its network of regional proxies, including Hezbollah, various Iraqi militias, and the Houthis, would ensure that the conflict could not be contained to Iranian territory. The tradeoff is stark: every year spent fighting in Iran would be a year in which China consolidates its position as the dominant economic partner for the developing world, and the cost of reversing that trend would grow exponentially. However, it is worth noting that not all historical parallels hold perfectly. The U.S. military is technologically superior to what it fielded in 2003, and a conflict with Iran might take the form of an air and naval campaign rather than a ground invasion. Even so, the economic disruption, diplomatic fallout, and opportunity costs would still be enormous, and the geopolitical realignment effects would be largely the same regardless of the specific military strategy employed.
The Accountability Gap in Tracking War Costs and Geopolitical Consequences
One of the most persistent failures of American governance is the inability to accurately track and report the full costs of military conflicts in real time. The Pentagon has never passed a clean audit. War spending is routinely funneled through Overseas Contingency Operations accounts that bypass normal budgetary scrutiny. And the long-term costs, particularly veterans’ healthcare and interest on war debt, only become visible decades after the fighting ends. A Trump-Iran war would inherit all of these accountability problems and likely introduce new ones.
The warning for American taxpayers is concrete: if a conflict begins, you will not know what it actually costs until long after it is too late to change course. The initial estimates will be lowballed, as they were for Iraq, where the Bush administration’s prediction of 50 to 60 billion dollars proved off by orders of magnitude. Congress has historically been unwilling to exercise meaningful oversight of war spending once a conflict is underway, and the media’s attention span for sustained cost reporting is limited. Citizens who want to track the real financial impact will need to rely on independent research institutions and government accountability organizations rather than official Pentagon figures. The geopolitical costs are even harder to quantify. How do you put a dollar figure on losing influence in Southeast Asia because your diplomats were all reassigned to the Persian Gulf? How do you measure the long-term economic impact of pushing India into a deeper partnership with China? These are the invisible costs that never appear on any ledger but shape the world for generations.
How China Is Already Positioned to Exploit American Overreach
Beijing has been preparing for exactly this scenario. China’s diplomatic strategy over the past decade has been explicitly designed to position itself as the stable, predictable alternative to an unpredictable United States. The 2023 Saudi-Iran deal was not an isolated event but part of a broader pattern that includes China’s mediation offers in the Russia-Ukraine conflict, its expanded engagement with Pacific Island nations, and its systematic cultivation of relationships across Latin America. In 2024 alone, China signed or upgraded strategic partnership agreements with more than a dozen countries, many of them traditional American allies or partners.
The practical mechanism is economic dependency. When China builds a port in Sri Lanka, a railway in Kenya, or a 5G network in Brazil, it creates a constituency within that country that has a financial interest in maintaining good relations with Beijing. A U.S.-Iran war would not create these dependencies from scratch, but it would remove the last counterargument against them. The countries currently trying to maintain balanced relationships with both Washington and Beijing would find it much harder to justify that balance when one side is starting wars and the other is building roads.
What a Post-Conflict Realignment Would Mean for Ordinary Americans
The downstream effects for American consumers, workers, and taxpayers would be slow-moving but substantial. A world in which more countries trade in yuan rather than dollars, purchase Chinese rather than American technology, and vote with Beijing rather than Washington at international institutions is a world in which the United States has less economic leverage, fewer export markets, and higher borrowing costs. The dollar’s status as the global reserve currency, which allows the U.S. government to borrow cheaply and American consumers to import goods at lower prices, depends on the willingness of other nations to hold dollar-denominated assets. Every country that shifts toward the Chinese economic sphere is one less buyer of U.S.
Treasury bonds, and that has direct implications for interest rates, federal borrowing costs, and ultimately the national debt. The pattern is not speculative. It is already underway in slow motion, driven by factors that have nothing to do with Iran. A major military conflict would simply accelerate the timeline, compressing decades of gradual realignment into a few chaotic years. For Americans concerned about the long-term economic competitiveness of the United States, the most important question is not whether the military can defeat Iran, which it almost certainly can in conventional terms, but whether the geopolitical costs of doing so would permanently damage America’s global economic position. The historical evidence strongly suggests they would.
Conclusion
A U.S.-Iran war under a second Trump administration would function as a catalyst for the multipolar realignment that China and Russia have been cultivating for years. The countries most likely to shift away from Washington are not America’s formal treaty allies but the dozens of middle-income and developing nations that currently maintain relationships with both sides and would be forced, by economic necessity and diplomatic logic, to move closer to Beijing. The energy market disruptions, defense spending, and diplomatic opportunity costs would compound the damage, potentially accelerating the erosion of dollar dominance and American economic leverage that is already underway. The accountability challenge is equally serious.
Americans would bear the financial burden of such a conflict through higher gas prices, increased federal debt, and reduced global economic competitiveness, but the systems for tracking and reporting these costs remain fundamentally broken. The most prudent course for citizens is to demand rigorous cost accounting before any military action begins, not after, and to evaluate the full spectrum of geopolitical consequences rather than focusing narrowly on whether the U.S. military can achieve tactical objectives. Wars are easy to start and nearly impossible to contain, and the second-order effects of this one would reshape the global order for decades.
Frequently Asked Questions
How many countries currently maintain significant trade relationships with both the U.S. and China?
According to data from the International Monetary Fund, more than 120 countries now count China as their largest trading partner, up from roughly 60 in 2005. Many of these same countries maintain security partnerships or aid relationships with the United States, creating the dual-alignment dynamic that a war would disrupt.
Would a U.S.-Iran war actually close the Strait of Hormuz?
Full closure is unlikely because Iran depends on the strait for its own oil exports, but partial disruption through mine-laying, missile threats to tanker traffic, and skyrocketing insurance premiums could reduce effective throughput by 30 to 50 percent, which would be more than enough to cause a global energy crisis.
How much would gas prices increase if a conflict disrupted Persian Gulf oil supplies?
Estimates vary, but most energy analysts project that a significant disruption to Strait of Hormuz traffic could push crude oil prices above 150 dollars per barrel, which would translate to retail gasoline prices of six to eight dollars per gallon in the United States, depending on refining capacity and strategic petroleum reserve releases.
Has China explicitly said it would exploit a U.S.-Iran conflict?
Chinese officials do not frame their strategy in those terms, but Beijing’s consistent pattern of expanding economic engagement in regions where American attention is diverted, as it did across Africa and Central Asia during the Iraq War, makes the likely response clear without any explicit statement.
What is the BRICS alliance and why does it matter in this context?
BRICS, originally Brazil, Russia, India, China, and South Africa, expanded in 2024 to include Iran, Egypt, Ethiopia, the UAE, and Saudi Arabia. The bloc represents a significant share of global GDP and population, and its expansion reflects exactly the kind of coalition-building that a U.S.-Iran war would accelerate. The group has been actively discussing alternatives to dollar-denominated trade.