Iran's foreign minister says the United States has broken the truce it signed with Tehran less than a month ago — not with bombs this time, but with a sanctions list. Abbas Araghchi wrote that the US Treasury Secretary is "violating Para 9 of the MoU", referring to the memorandum of understanding that ended the shooting war between Iran and the United States. Araghchi added that "there can only be mutual compliance," and that this violation "follows other violations and missteps by the United States," according to News.az.

The memorandum in question was signed by Presidents Trump and Iran's president on June 17 and took effect the following day, per Al Jazeera. Its Paragraph 9 commits Iran to freezing its nuclear program at the status quo pending a final deal, while the US agrees to impose no new sanctions and deploy no additional forces to the region during the 60-day negotiating window. That clause is now the fault line.

What the US actually did

The dispute traces back to an escalation that began on the water, not in a negotiating room. Iran struck commercial vessels transiting the Strait of Hormuz last Thursday, and the US responded on Friday with retaliatory strikes and by reimposing sanctions on Iranian oil exports, according to CNN. Buyers of Iranian oil were given until July 17 to unwind transactions already underway. Then came a second, more targeted round: the Treasury sanctioned Ali Ansari, a Dubai-based Iranian financier accused of running a global network of real estate and commercial holdings on behalf of the Supreme Leader's office and other regime insiders, spanning Germany, the UK, Spain, Cyprus, Luxembourg and the UAE through a Saint Kitts and Nevis shell company called Smart Global Limited, per Investing.com. Alongside Ansari, Treasury also designated three Iran-based currency exchange houses — Mohammad Darbani and Partners, Lavasani and Partners, and Mohsen Khandan and Partners — which the department says move billions of dollars a year on behalf of already-sanctioned Iranian banks.

Those sanctions on Ansari and the exchange houses are, per Bloomberg, the first new US sanctions on Iran since the memorandum's signing — which is precisely why Tehran is treating them as the test case for whether Paragraph 9 means anything.

The bigger picture: a truce fraying at its edges, not its center

What's notable here is the shape of the de-escalation. The shooting itself has calmed: after last week's exchange of strikes over the Hormuz ship attacks, both sides appear to have stepped back from direct military confrontation for the moment. What hasn't calmed is the argument over the memorandum's fine print — oil sanctions, financial-network sanctions, and now dueling claims about who broke the deal first. This is consistent with how the ceasefire has behaved since its first week: Trump himself said after the Hormuz strikes that "I think it's over. I don't want to deal with them anymore" about the memorandum, only to say on Truth Social that Washington had agreed to continue talks even while insisting "the Cease Fire is OVER!" That contradiction — talks continuing, sanctions expanding, ceasefire declared dead and then not quite dead — is the actual state of play.

Why it matters: the memorandum was never just about stopping missiles — it built an economic no-new-sanctions clause into the truce precisely because sanctions are how this conflict has usually been fought when the guns are quiet. If Washington can reimpose oil sanctions and add fresh Treasury designations without that counting as a ceasefire breach in its own eyes, the 60-day negotiating window loses its main incentive for Iran to hold still. Conversely, if Iran can strike commercial shipping in the Strait of Hormuz — a route carrying roughly a fifth of the world's oil and gas, per Al Jazeera — without permanently collapsing talks, the ceasefire is more elastic than its text suggests. Either way, global oil markets and shipping insurers are pricing a truce that both sides now openly contest.

Enforcement keeps running underneath the diplomacy

The sanctions fight over Paragraph 9 is happening against a backdrop of an active, wide US enforcement campaign against Iranian sanctions evasion that has continued regardless of ceasefire diplomacy. A Hawaii green card holder has been accused of using cryptocurrency to help evade Iran sanctions, according to Hawaii News Now, one node in a much larger crackdown on crypto-based evasion networks. That campaign has included OFAC's designation of Iran's largest crypto exchange, Nobitex, along with Wallex, Bitpin and Ramzinex, and the freezing of roughly $344 million in cryptocurrency tied to Iran's central bank, according to Crowdfund Insider. That this individual enforcement case is proceeding in parallel with the high-level memorandum dispute underlines that, whatever the ceasefire's fate, the financial pressure track never actually paused.

Established fact vs. open question

  • Established: the June 17 memorandum bars new US sanctions during the 60-day talks window, and the Ansari and exchange-house designations are the first new sanctions since it was signed, per Bloomberg.
  • Established: Iran attacked commercial ships in the Strait of Hormuz, the US struck back and reimposed oil sanctions, per CNN.
  • Open question: whether Washington views the Ansari/exchange-house sanctions as a permitted response to Iran's ship attacks — effectively outside Paragraph 9 — or whether it is deliberately testing how far it can push economic pressure without the ceasefire formally collapsing.

Hypothesis: the sequencing suggests Washington is using financial sanctions as the tool of choice precisely because they are harder to classify as a ceasefire violation than air strikes are, letting it keep pressure on Tehran's regime finances without reopening the shooting war. Supporting this: the new sanctions target the Supreme Leader's personal financial network and shadow currency exchanges rather than military assets, a distinction the administration can plausibly frame as "holding the regime accountable," not military escalation, per Treasury's own announcement. Against this: Araghchi's public linkage of the sanctions directly to Paragraph 9 shows Iran isn't accepting that framing, and continued disputes over the memorandum's terms carry real risk of reigniting the shooting conflict that only just paused.

What to watch next

  • Whether Iran responds to the Ansari sanctions with further action in the Strait of Hormuz, which would signal it is treating financial sanctions as equivalent to military escalation.
  • Whether the July 17 wind-down deadline for Iranian oil purchases passes without a further Iranian retaliatory step.
  • Whether the 60-day negotiating window under the memorandum survives intact, or whether either side formally declares it void.
  • Whether Washington imposes further sanctions packages before the window closes, which would further test Tehran's tolerance for Paragraph 9 disputes without a full return to fighting.