U.S. launches 'Economic D-Day' sanctions campaign as Iran war enters sixth month

Six months into a war that began with airstrikes and military posturing, the United States shifted tactics on Monday. Treasury Secretary Scott Bessent announced Operation Economic Outcast, a sanctions campaign he described as the "single greatest financial offensive ever marshaled against an adversary." The move represents a deliberate pivot: if military pressure has not broken Iran's will to resist, perhaps financial strangulation will. President Trump, in a post on Truth Social, declared Iran "completely collapsing," though the evidence on the ground told a more complicated story.

The new sanctions expand secondary penalties on any entity or country that transacts with Tehran, targeting digital assets, gold, aviation, technology, and shipping. Bessent warned that any organization caught laundering money for Iran would be removed from the U.S. dollar system entirely—a threat meant to isolate Tehran from global finance. The campaign comes after a June memorandum of understanding between the U.S. and Iran set a 60-day window for broader peace negotiations. That deadline expired last week with no agreement. Both sides declared the deal dead. Now, with diplomacy exhausted, Washington is betting that economic pain will accomplish what negotiation could not.

Iran's response was defiant, if strained. The country's currency, the rial, hit a record low of 2.02 million to the dollar on informal markets—a collapse driven by years of sanctions, double-digit inflation, and the fresh toll of war. Yet Iranian officials dismissed the new measures as futile. Central Bank Governor Abdolnaser Hemmati pointed to the "maximum pressure" campaign of Trump's first term, which Iran had weathered. "They sanctioned everything," he said. "The country stood and got through that period." Economy Minister Ali Madanizadeh predicted "another defeat" for the United States, claiming Iran had a two-year plan to counter the sanctions. The foreign ministry spokesman warned that any country joining the economic war would be considered an enemy, and that Iran's "hands are not tied" in response.

Meanwhile, the physical conflict continued to fray the edges of the region. An oil tanker was struck by an unknown projectile in the Strait of Hormuz off Oman's coast, disabling its engine room but causing no casualties. In the Red Sea, Houthi rebels claimed they had hit a Saudi oil tanker with a ballistic missile, part of their announced blockade of Saudi shipping. The U.S. military reported it had redirected 71 commercial vessels as part of its own blockade against Iran, with seven redirected in the past week alone. Over 40 ships carrying humanitarian aid were permitted passage. The Strait of Hormuz—the chokepoint through which roughly a third of the world's seaborne oil passes—remained the focal point of competing claims and counterclaims about who controlled access and at what cost.

Diplomacy, though declared dead, flickered at the margins. Pakistan's Army chief, Asim Munir, traveled to Tehran on Monday after speaking with President Trump, tasked with drawing Iran back into dialogue. Oman and Iran were set to continue talks on Tuesday about managing the strait, with discussions centering on tolls and designated shipping routes. These conversations suggested that beneath the rhetoric of total victory and economic collapse, both sides recognized the need for some mechanism to restore order to one of the world's most vital waterways.

The war's reach extended beyond the Middle East. Iranian-affiliated hackers temporarily took a power plant offline in the United Kingdom in July—reportedly the first time such an attack had succeeded in Britain. The same month, Iranian-linked hackers targeted water systems, locking out operators and causing pressure loss and flooding. Greece moved a Patriot missile interceptor system to the island of Crete in response to Iranian threats to strike U.S. bases in Europe. South Korea announced that the U.S. had canceled a major joint military exercise scheduled for next month due to force constraints in the Middle East, raising concerns in Seoul and Tokyo about American reliability as an ally.

China, the world's largest buyer of Iranian oil and importer of more than 80 percent of Iran's crude before the war, criticized the new sanctions. Foreign Ministry spokesperson Lin Jian said the measures would "only exacerbate tensions and escalate the situation." The statement reflected Beijing's interest in stable energy supplies and its broader resistance to U.S. economic coercion.

Iran's national police chief warned that the country's adversaries were seeking to exploit economic grievances—unemployment, inflation, gasoline shortages—to trigger widespread unrest. He urged police to adopt a preemptive approach, identifying and confronting what he called hidden networks seeking to incite the public. The warning suggested that Iranian leaders feared the sanctions would not merely squeeze the state but fracture society itself. As the war entered its seventh month, the question was no longer whether military force or economic pressure would prevail, but whether either could bend the other side's will before the cost became unbearable.