U.S.-Iran Locked in War of Attrition as Trump Shifts Iran Strategy for the Third Time
Alina Collins
After a temporary ceasefire collapsed within days, the Trump administration shifted its Iran military strategy for the third time in five months — resuming airstrikes, reimposing a naval blockade, and slapping a 20% transit fee on Hormuz Strait cargo. Brent crude is up 15% this week; the trajectory of this attrition war is now the pivotal variable for oil prices and the US midterm elections.
Three pivots in five months — why has none of them worked?
Round one (late February): US forces joined Israel's campaign to destroy Iran's leadership and missile arsenal. Trump predicted the fight would end in four to six weeks — five weeks of intensive airstrikes later, Washington called a ceasefire.
Round two: after Vice President Vance's negotiations in Islamabad failed, the US switched to a naval blockade of the Hormuz Strait — but the strait carries roughly one-fifth of the world's seaborne crude, and the blockade drove up oil prices, hurting the US itself.
Round three (current): a June ceasefire memorandum fell apart within days; the White House resumed strikes and imposed a 20% transit fee. This means → each escalation has failed to force Iran's hand and instead pulled the US deeper into the attrition cycle.
Why is blockading the Hormuz Strait a double-edged sword?
The Hormuz Strait is the chokepoint for global crude shipments — about one-fifth of all seaborne oil passes through it. Blocking Iran simultaneously drains global oil inventories.
Vance publicly admitted that one goal of the June ceasefire was to "replenish stockpiles before considering the next move." In plain terms = the US could not absorb the oil-price pressure from its own blockade and needed to pause.
Brent crude rose 4.5% Tuesday morning to $87.08 per barrel; the weekly gain reached 15%. Surging prices plus a looming midterm election are tightening the political space around the White House.
What exactly is this "war of attrition" consuming?
Kenneth Pollack, former CIA analyst and vice president of the Middle East Institute, calls the current situation a "coercive war of attrition" — both sides are trying to push the other past an unknowable pain threshold.
Iran's variable: whether it can rebuild its missile force and air defenses. America's variable: whether it can sustain strike tempo as weapons stockpiles keep declining.
This reflects a fundamental impasse: both sides treat the war as a bargaining lever, but neither knows where the other's breaking point lies — and the conflict could spiral into full-scale war at any moment.
Why did US strikes suddenly expand deep into Iran's interior?
US forces recently carried out strikes across southern Iran far wider in scope than any before, with some reaching deep inland — including hitting a railway bridge in northeastern Iran that connects Central Asia and extends to China and Russia.
This means → Washington is not just hitting military targets; it is signaling that if full hostilities resume, Iran's overland supply alternatives will be cut off too.
Iran claims it struck missile systems in Jordan, command-and-control facilities in Bahrain, and air-defense and radar installations in Kuwait — none of these claims have been independently verified.
What is the endgame variable for this attrition war?
The Trump administration did not anticipate a prolonged conflict, yet five months in, both sides are betting they can outlast the other.
Ali Vaez, an analyst at the International Crisis Group, warns that both sides view the war as a negotiating tool — "this situation is unsustainable" — and the conflict risks spiraling out of control.
In plain terms = whether diplomacy can de-escalate before the midterm elections is the pivotal variable for whether oil prices retreat from their highs — the election calendar is forcing the White House's hand.
Content is for reference only, not financial advice.