The U.S. lifted its blockade of Iran and tankers returned to Hormuz. Now the agreement turns on inspectors, side letters, fees and the politics of believing a signed document.
The first proof of the Iran agreement was not a handshake. It was traffic.
On Thursday, the United States lifted its blockade of Iran, and oil tankers began moving through the Strait of Hormuz after months in which the channel had been a weapon, a bargaining chip and a price signal. The tentative settlement that President Donald Trump and Iranian President Masoud Pezeshkian signed has now left the summit photograph and entered the shipping lane.
That is the useful part. It is also the easy part.
The harder question is whether this agreement has a verification system sturdy enough to survive the first argument about what it means. The Associated Press reported that Trump envoy Steve Witkoff told lawmakers Iran will invite the U.N. nuclear watchdog to inspect its nuclear sites and help identify the location of enriched material believed to be buried under rubble. Witkoff also told lawmakers there were no side deals in the U.S.-Iran memorandum, while describing a side letter between Tehran and the International Atomic Energy Agency.
That distinction is now the deal's nervous system. A public memorandum can stop shooting. A side letter can decide whether the stop holds.
Iran's supreme leader, Ayatollah Mojtaba Khamenei, endorsed direct negotiations with the United States in his first public response to the agreement, according to AP. That matters because direct talks have long been treated in Tehran as surrender by another name. But Khamenei's message was not capitulation. It was permission to enter the room while denying Washington ownership of the terms.
Washington, meanwhile, is trying to turn the agreement into an immediate domestic dividend. Vice President JD Vance defended what he called gentlemen's agreements over Iran's nuclear handling, argued that lower gas prices and renewed shipping already show success, and pushed back at Israeli criticism. U.S. Central Command said American warships would remain in the area to make sure the agreement is followed.
Then came the invoice. Iran announced plans to introduce maritime fees for vessels moving through Hormuz after a 60-day negotiation period, saying the waterway now requires management. Saudi officials objected sharply, arguing that navigation had worked before the war and should not be replaced by a new Iranian toll system. Gulf states that want the strait open do not want openness to arrive wearing Tehran's name tag.
That is the shape of the peace: practical relief under heavy suspicion. The blockade is gone, but the ships are being counted. Inspectors may be invited, but the invitation is already embedded in a diplomatic footnote. A ceremony in Switzerland was thrown into doubt, but technical talks are still expected to proceed. Israel says its security needs in southern Lebanon remain. Iran says the deal requires withdrawals. Trump says a wider ceasefire should follow.
The agreement deserves credit for converting immediate force into inspectable process. That is not a small thing. Wars are easiest to start when every capital believes the next act will clarify matters. This one has done the opposite: it has ended by multiplying clauses.
The danger is not that paperwork is weak. The danger is that each side can use a different piece of paper. The United States can cite the memorandum. Iran can cite the side letter and the strait negotiations. Israel can cite security needs. Gulf states can cite freedom of navigation. Markets can cite crude prices. Voters can cite gas receipts.
A document has bought time. Now time wants receipts: inspectors who inspect, ships that ship, enriched material that is accounted for, and neighbors who do not conclude that the ceasefire merely moved the battlefield into the fine print.