Leading international relations scholar John Mearsheimer warns that the United States is caught in an intractable quagmire reminiscent of the Vietnam War while addressing the escalating Middle East crisis. He cautions that if the conflict escalates to striking Iran's core infrastructure, the global oil market could face a catastrophic supply disruption.
In a recent in-depth interview covering geopolitics and the macroeconomy, renowned scholar John Mearsheimer provided a detailed assessment of the unfolding Middle East tensions and the direction of global energy markets.
International oil prices have surged past $100 per barrel for the first time in two months, as three simultaneous supply shocks push the global energy market to a new dangerous edge. Brent crude oil broke above $100 intraday on Thursday, putting the monthly gain on track to be the largest since the Strait of Hormuz blockade in March of this year. The trigger for this sharp rally was a threat by Houthi rebels to block the Bab el-Mandeb Strait, which was compounded by unconfirmed US media reports that President Trump is "close" to ordering a large-scale attack on Iran, alongside ongoing strikes on Russian refining facilities.
Market analysts have warned that if the strait blockade materializes, oil prices could surge toward $120. In Mearsheimer's view, the US is in an extremely difficult position when responding to this situation. He stated bluntly: "The key point is, we have no good military options here. That’s why President Trump signed the June agreement — because we had no choice."
"No Good Military Options": The Disparity Between 8,000 Troops and a Population of 93 Million
Regarding the extreme geopolitical tail risk that markets fear — a potential US ground invasion or island occupation — Mearsheimer dismissed the possibility from a purely military operational standpoint.
He pointed out that the number of US combat troops available for actual ground operations in the region is extremely limited. "What are you going to do with 8,000 soldiers? If you’re going to invade a country like Iran, which has 93 million people, 8,000 soldiers is clearly not enough. Iran has a powerful military and a very large territory."
Mearsheimer argued that using either the Israeli Defense Forces or Kurdish fighters as ground proxies is "unreliable." If an attempt were made to seize Iranian islands, "many American soldiers would die. It would be an extremely dangerous operation... This action would almost certainly be seen as a futile military adventure, and President Trump would pay a huge political price for it."
He drew a stark comparison between the current US predicament and the Vietnam War. During the Vietnam War, from 1965 to 1968, US leaders continuously increased combat troop levels to 530,000, despite knowing they had no good military options, and were ultimately forced to withdraw. Mearsheimer noted: "After the initial bombing campaign failed, within about two weeks, we realized we were in a very difficult position. I believe the key decision-makers inside the administration eventually understood that we had no good military options in this war. Yet, we continued to escalate the military action — this is exactly what happened in Vietnam."
A 15 Million Barrel Per Day "Cushion": Why Hasn't the Oil Market Collapsed Completely?
Given the persistent turmoil in the Middle East, why hasn't the global economy immediately slumped into a depression? This is the central question for macro investors. In the interview, Mearsheimer used detailed data to explain the current "fragile balance" that is sustaining the global oil market.
He noted that the market has temporarily mitigated the supply shock through three workarounds. First, crude oil has not been completely cut off. "Of the 20 million barrels per day that normally flow through the Strait of Hormuz, 7 million barrels are still flowing out. So, when people say oil from the Gulf is completely cut off, that's not accurate — 7 million barrels are still flowing out through Yanbu and Fujairah." Second, there has been an unexpected contraction in demand. "China's oil demand has dropped by about 5 million barrels per day, so when you consider that 20 million barrels of supply, there's effectively a surplus of 5 million barrels because China has already met its own needs." Third, there has been a release of strategic reserves. "The amount of oil released from strategic reserves has been quite significant, around 3 million barrels per day."
The Crisis Point: Two Scenarios That Will Determine the Future of Oil Prices
However, Mearsheimer warned investors that this fragile balance — relying on "7 million barrels of rerouted oil + 5 million barrels of demand reduction + 3 million barrels of reserve releases" — is extremely precarious. Strategic petroleum reserves are being gradually depleted and cannot supply the global market indefinitely. Simultaneously, if Chinese demand suddenly returns to February levels, the oil market will face a massive shortfall.
Against this backdrop, the future direction depends on US actions, and the market will face two starkly different scenarios.
Scenario One: Avoiding Attacks on Infrastructure, Maintaining the Stalemate (Favorable for Short-Term Market Stability). If the US, in its next moves, "does not target Iran's infrastructure — no attacks on bridges, power grids, or power plants — then perhaps the Iranians won't close the Red Sea ports, and oil can still flow out of Fujairah." In this case, both sides might negotiate a resolution that is relatively favorable to Iran.
Scenario Two: Attacking Core Infrastructure, Triggering a Global Energy Crisis (Oil Prices Completely Out of Control). If the conflict follows its most aggressive script, "If President Trump, as he has promised, actually strikes Iran's power plants, bridges, and even its oil facilities, it would be a catastrophic event for the Gulf states. I would not be surprised if the Iranians even attack Israeli targets. I believe this would have a severe negative impact on global oil supply, because it is almost certain that oil exports from Libya and Yemen would be cut off." At that point, the "safety valves" of the Yanbu and Fujairah pipelines could also be completely shut down, plunging the global economy into a genuine crisis.
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