Six Months In, US-Iran War Settles Into Costly Stalemate Over Strait of Hormuz

An endgame without a winner

Reuters reported from Beirut on August 27 that the Iran war had reached its endgame: a costly stalemate with no clear path to resolution. Six months after US and Israeli strikes opened the conflict on February 28, the fighting has narrowed to a single strategic question — who controls the Strait of Hormuz, the thirty-three-kilometre chokepoint through which roughly a fifth of global oil and liquefied natural gas supplies pass in peacetime.

Analyst Michael Knights told Reuters that Iran could increasingly adopt asymmetric tactics as its conventional capabilities degrade, while Washington faces a fundamental problem with its latest sanctions push: Tehran is betting that President Donald Trump will not take the final step of aggressively enforcing secondary sanctions against the countries keeping Iran's economy afloat, foremost among them China and India.

Ninety-five percent drop in Hormuz traffic

Al Jazeera reported that traffic through Hormuz had fallen from more than a hundred vessels a day before the war to an average of about five, marking an almost ninety-five percent decrease. Crude exports from the Gulf region dropped by nearly half compared with pre-war levels, from about seventeen million barrels a day in 2025 to roughly nine million by August 2026. Analysts estimated that five to seven million barrels of Gulf oil a day remained disrupted.

What little traffic persists consists mostly of tankers operating under naval escort or with tracking systems switched off. A June interim agreement briefly lifted daily transits to around twenty-five vessels before the US resumed its blockade of Iranian ports and fighting re-escalated. From mid-July through late August, the strait remained, in effect, closed.

Energy trench warfare and market resilience

In a Reuters Open Interest commentary on August 26, analysts described the conflict as hardening into energy trench warfare that could last well into 2027. Duelling Iranian and US blockades have curtailed traffic sharply, disrupting energy markets and imposing mounting costs on global economies. Brent crude remained around ninety dollars a barrel, roughly twenty-five percent above its pre-war level, even though ample inventories and reduced Chinese imports have prevented the spike many forecasters expected.

US gasoline prices have risen roughly thirty percent over the past year, while diesel prices have surged further. The bottleneck, analysts increasingly argue, is no longer crude supply but refined products — transport costs are rising and diesel shortages are emerging as the binding constraint keeping geopolitical risk embedded in prices.

Sanctions shift the battlefield to finance

Washington's latest measures, announced in late August, marked a new phase in the conflict, shifting the battlefield from missiles and airstrikes to Iran's oil revenues, banks, and trading partners. Treasury Secretary Scott Bessent said the United States would cut off the financial lifelines sustaining Iran's economy, while a US-led naval blockade restricts Tehran's oil exports and access to hard currency.

Trump has demanded Iran's surrender and threatened to bomb Oman, one of the mediators seeking to reopen the strait. A senior Iranian official told Reuters that Tehran would escalate tensions in Hormuz and beyond if Washington failed to implement an interim peace deal fully within weeks. The result is a conflict that neither side can win quickly and neither can afford to lose.