Six months into the US-Iran conflict, Hormuz remains restricted and talks are stalled. Here’s the timeline, the legal fight in Congress, and what each side says it wants.
Key Takeaways
- US and Israeli strikes on Iran began February 28, 2026. Trump’s War Powers notification to Congress described targets including ballistic missile sites, maritime mining capabilities, air defenses, and command and control.
- The conflict has moved through several ceasefires and collapses. A June 18 memorandum of understanding reopened shipping for a time, but a July breakdown led to renewed attacks and a US naval blockade of Iranian shipping.
- Congress has repeatedly failed to pass war powers resolutions. The administration argues that the 60-day War Powers clock does not apply to a ceasefire, and Democrats dispute that reading.
- Polls show the war is unpopular, and it is shaping the November midterm campaign.
- The Strait of Hormuz remains the central issue. Iran has said it will set conditions for reopening it, and the US has said restrictions will remain until a deal is signed.
Search Intent Summary
Readers searching this topic usually want to understand what the US is doing in Iran, why, whether Congress has a say, and what it means for the region and the economy. This article lays out the timeline, the legal debate, each side’s stated goals, and the regional risks.
How the Conflict Began
On February 28, 2026, the United States and Israel launched joint strikes on Iran. Reporting at the time described strikes that killed several senior Iranian leaders, including Supreme Leader Ayatollah Ali Khamenei, a claim Trump made publicly that day. Iran responded with missiles and drones against Israel and US military assets across the Gulf.
Trump’s War Powers notification to Congress said the strikes were intended to protect US forces, ensure the free flow of commerce through the Strait of Hormuz, and act in collective self-defense of allies including Israel. The letter said it was “not possible at this time to know the full scope and duration” of the operation.
Critics questioned the legal basis. Democratic lawmakers, and a small number of Republicans, argued that the Constitution gives Congress the power to declare war, and that the strikes proceeded without authorization. The administration notified congressional leaders beforehand, in line with its reading of the law.
The Ceasefire Cycle
The war has moved through several phases, and reporting on each phase varies.
In April, a two-week ceasefire was reached, followed by talks in Islamabad. The first round produced no breakthrough. Vice President JD Vance led US participation, and Pakistan served as a key mediator. In May, the two sides were reported to be close to a 60-day extension tied to a gradual reopening of the strait.
A June 18 memorandum of understanding between the United States and Iran was intended to end the conflict and reopen the strait. Shipping recovered for a time, and in July the Energy Information Administration forecast that oil flows would return toward pre-conflict levels by year end.
That recovery did not hold. In early July, shipping through Hormuz fell sharply after vessel attacks, and the US and Iran traded renewed strikes. Iran declared an end to the ceasefire, while US officials described talks as constructive. By August, the US had imposed a naval blockade, and Iran had set out plans for a transit corridor with Oman.
The status of military operations is now a matter of dispute. The US said in August that there had been no exchange of fire since the ceasefire, and a late-August tracker reported no US or Israeli operations over Iranian territory for about 27 nights. Shipping incidents, the blockade, and attacks on tankers have continued, however, and Iran has said it will not negotiate while threats continue.
The Legal Fight in Congress
The War Powers Resolution of 1973, passed over President Nixon’s veto, requires the president to notify Congress within 48 hours of committing forces to hostilities and to withdraw them within 60 to 90 days unless Congress authorizes a longer period. Presidents of both parties have said the law is unconstitutional or have used its notification mechanism in ways critics say get around its limits.
Congress has repeatedly declined to restrict the operation. In February, Democratic Senator Tim Kaine and Republican Senator Rand Paul filed a resolution to block hostilities without authorization, and Republicans have blocked similar efforts. Reuters reported that Republicans hold slim majorities in both chambers.
In August, Trump wrote to congressional leaders that hostilities had been “terminated” and that there had been no exchange of fire since the ceasefire. The administration argued that the 60-day deadline did not apply. Trump has also said he considers the War Powers law unconstitutional. Democrats responded that nothing in the 1973 law allows a ceasefire to stop the clock.
Some Republicans who voted against war powers resolutions said they might reconsider after the May 1 deadline. As of late September, no resolution had passed both chambers and become law.
What Each Side Says It Wants
The administration’s stated goals include reopening the Strait of Hormuz, protecting US forces and allies, and preventing Iran from threatening maritime commerce. Trump has said the strait must remain closed to shipping traffic until a deal is signed, and he has demanded that safe passage be restored as a condition of talks.
Iran’s stated position centers on ending the regional war on all fronts, including Lebanon. Iranian officials have said the lifting of the US naval blockade is a key condition, and they have rejected linking nuclear concessions to ending the war, arguing that nuclear talks should follow a settlement. Iran has also said it is drafting a list of conditions for reopening the strait, with ending the regional war among them. Iranian officials have also said their armed forces rebuilt capabilities during the ceasefire.
Other regional actors have their own interests. Oman is working on a transit arrangement for the strait, Qatar and Pakistan have served as mediators, and Gulf states have been directly affected by shipping disruption and attacks.
Domestic opinion is divided and tilted against the war. Polls described the war as unpopular ahead of the midterms, and some Republicans have voiced support for the goals while questioning the scope. Democrats have framed the conflict as a constitutional question as well as a foreign policy one.
Casualties and the Cost of War
Casualty figures vary widely by source, and they should be attributed. One tracker recorded 18 US military deaths since February 28, with Defense Department data showing more than 790 wounded. Iranian death tolls range from about 3,500 in figures cited by Iranian institutions to more than 6,000 in US and Israeli estimates. Civilian and military breakdowns differ across sources.
The economic cost has been significant. Shipping insurance rates for vessels transiting the region rose to 7.5% to 10% of hull value, compared with 1% to 3% before the war. The International Maritime Organization has counted 65 confirmed shipping incidents, and seafarer fatalities are part of that total.
These effects reach well beyond the region. Oil prices, covered in our crude market analysis, have been driven by strait disruptions, and EIA’s October outlook assumes restrictions on Middle East flows persist through the fourth quarter.
Strategic Implications for Middle East Stability
The conflict has spread beyond Iran and the Gulf. Hezbollah has carried out drone attacks in southern Lebanon, and fighting has continued in Yemen. Reporting has described the regional situation as a “very dangerous period,” with multiple actors able to escalate.
Three questions will shape the next phase.
The first is whether Iran’s conditions for reopening the strait can be reconciled with US demands. Both sides have said the strait cannot reopen on the other’s terms, and the arrangement Iran reached with Oman may or may not satisfy Washington.
The second is whether the ceasefire framework can be restored. Earlier rounds of talks produced temporary halts that collapsed when shipping incidents occurred, which suggests a lasting deal will need enforcement mechanisms, not just declarations.
The third is how Congress and the courts respond. The War Powers dispute is unresolved, and it will matter for future conflicts regardless of the outcome in Iran.
Practical Takeaways
For readers following the policy, the most useful sources are the White House and State Department statements, the Congressional Record for war powers votes, and wire reporting from Reuters and the Associated Press for real-time developments. Casualty and damage figures should be checked against official data where possible.
For businesses and households, the practical impact runs through energy prices, shipping costs, and insurance. Those effects are likely to persist as long as the strait remains restricted.
This article describes events and positions. It does not offer a view on whether the strikes were justified, which is a contested question on which reasonable people disagree.
Future Outlook
The conflict has gone through multiple ceasefires and breakdowns, and each one has been followed by renewed uncertainty. Whether the next phase brings a durable arrangement or another escalation will depend on Hormuz, on Iranian conditions, and on US domestic politics ahead of the November midterms.
Frequently Asked Questions
Why did the US strike Iran in February 2026?
Trump’s War Powers notification said the strikes aimed to protect US forces and allies, ensure the free flow of commerce through the Strait of Hormuz, and act in collective self-defense. Critics questioned whether the strikes required congressional authorization.
Has Congress authorized the war?
No. Congress has repeatedly declined to pass war powers resolutions restricting the operation, and no resolution had become law as of late September 2026. The administration argues the War Powers clock does not apply during ceasefires. Democrats dispute that reading.
Is the war over?
Not in any settled sense. Ceasefires have been reached and broken several times. The US has said hostilities were terminated in August, but shipping restrictions, a naval blockade, and attacks on vessels have continued, and Iran has set conditions for negotiations.
How does this affect oil prices?
The Strait of Hormuz carries about one-fifth of global oil trade, so disruptions to shipping have pushed prices up sharply. Brent averaged about $114 a barrel in September 2026, according to EIA. Check current prices before relying on any figure.
