Treasury Secretary Scott Bessent announced a sweeping sanctions campaign against Iran from the Cash Room at the Treasury Department, naming it Operation Economic Outcast and describing it as an economic D-Day. The department issued new sectoral sanctions determinations covering five areas it identified as Iran’s most vital foreign lifelines — digital assets, technology, gold, aviation and shipping — and broadened the risk of secondary sanctions for entities that keep trading with Tehran. Bessent said the objective is to "sever every economic lifeline" sustaining the government, invoking the Second World War landings by way of comparison, and said Trump was telephoning world leaders with "specific requests" to cut commercial ties. CBS reported the package billed as "the single greatest financial offensive ever marshaled against an adversary."

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The delivery was narrower than the billing. Bessent defended the decision to hold off on the crippling secondary sanctions aimed at nations tied to Iran, casting Monday’s announcement as a "warning shot" and a level-set. The expanded mechanism would be unrolled in the coming weeks only if Iran does not soften its negotiating position, or if allied countries — China named among them — fail to comply. He also acknowledged the measures could destabilise the global economy. An analyst quoted by Al Jazeera read the campaign as an attempt to intensify pressure precisely because the military campaign has not delivered a decisive outcome.

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Iran’s currency fell to a record low of about 2.02 million to the dollar ahead of the announcement. Trump said Iran was collapsing. Tehran projected the opposite: Finance Minister Ali Madanizadeh said the country is fully prepared to counter the sanctions and predicted another American defeat, saying Iran has ways around them. Chief negotiator Ghalibaf argued that the United States is not in an economic position to dictate other countries’ relations — the same argument Beijing made on Day 175 when it declined to back the campaign.

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Mohsen Rezaei, secretary of Iran’s Supreme National Security Council, said that if the United States broadens its economic campaign then "not a single drop of oil will be exported" from anywhere in the Persian Gulf — not merely from Iran. He added that Tehran would regard any country’s participation in or support for the campaign as "an act of war." That is a threat aimed at the Gulf producers rather than at Washington, and it arrives after the UAE cut all trade with Iran on Day 173 and Saudi Arabia entered offensive operations on Day 152.

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Against all of it, the Omani track continued. Oman’s foreign minister Sayyid Badr al-Busaidi was due in Tehran on Tuesday to discuss the Strait of Hormuz, with the two sides having negotiated for weeks over a system to manage commercial traffic and the question of fees recurring throughout. Pakistan’s army chief, Field Marshal Asim Munir, met Iranian officials on Monday; Rezaei told him the United States must change its behaviour and take concrete steps toward fulfilling the memorandum. President Pezeshkian, extending his remarks logged on Day 177, called for a return to the memorandum as better than the present state of "neither war nor peace."

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No attacks on vessels in the Strait of Hormuz were reported over the previous 48 hours, though shipping through it remains far below normal. The Red Sea was not as quiet: Saudi Arabia’s national shipping company Bahri said one of its tankers was involved in a security incident hours after the Houthis claimed to have targeted the vessel in a missile attack. Separately, Syria and Israel held US-mediated talks in Jordan aimed at de-escalating the tensions that followed the Abu al-Duhur strikes. Ledger note: this tracker’s feed ingested those talks as an air strike on Syrian territory; it was a negotiation, not a kinetic event, and no strike occurred.

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Tracker status holds at WAR RESUMED. Day 178 delivers the pivot this archive has tracked since the memorandum expired: the war’s primary instrument is now financial. But the announcement was explicitly a first move rather than the decisive one — the secondary sanctions that would force third countries to choose were withheld, and their release depends on Chinese compliance that Beijing has already refused. Iran answered by threatening the entire Gulf’s exports and calling cooperation an act of war, while simultaneously sending its president to argue for the memorandum and receiving Oman’s foreign minister. US strikes on Iran remain paused since August 1, twenty-four days, and the strait stays closed.