Iran Vows Devastating Response to Trump’s Economic D-Day Sanctions

Iran vowed a devastating response on Friday to Washington’s pledge to impose the toughest financial penalties in history with the aim of toppling the Iranian leadership. The U.S. Treasury chief announced that further details regarding the maximum economic pressure campaign would be delivered on Monday.

Military and Diplomatic Reactions in Tehran

The chief of staff of Iran’s Armed Forces, Major General Ali Abdollahi, stated that the Islamic Republic’s reaction would be broad and decisive. According to Iranian media reports cited by Reuters, Abdollahi declared that Iran’s armed forces would respond to new threats with crushing, punishing, and devastating measures across land, sea, air, air defence, and cyberspace.

Meanwhile, Iran’s parliament speaker, Mohammad Baqer Qalibaf, who serves as the country’s main negotiator in mediated talks with the United States, asserted during a visit to neighboring Iraq that Washington appeared to have concluded it could not prevail in a direct military confrontation. Qalibaf called for national planning to overcome what he termed unjust sanctions, accusing the U.S. and Israel of engaging in economic and cognitive warfare.

Before U.S. officials detailed the new measures, Iran’s foreign ministry condemned the trade sanctions as economic terrorism. The ministry stated that the actions would not create even the slightest hesitation in Iran’s determination to safeguard its independence, dignity, and national sovereignty.

U.S. Strategy and the Energy Market Impact

U.S. Treasury Secretary Scott Bessent outlined the impending measures on Thursday following a warning from President Donald Trump regarding economic consequences for any nation providing a lifeline to Tehran. Bessent described the strategy as a one-two punch combining a naval blockade—reimposed in July—with financial restrictions intended to collapse the Iranian government.

Addressing oil markets during an interview with CNBC, Bessent expressed uncertainty over why crude prices rose following the announcement. Oil prices steadied on Friday while remaining on track for a second weekly rise due to ongoing concerns over Gulf energy exports. Bessent argued that maximum economic pressure implied that a large-scale kinetic restart of military operations was unlikely.

The nearly six-month-old conflict has severely disrupted shipping through the Strait of Hormuz, a critical waterway that previously handled roughly a fifth of globally traded oil. Data from the shiptracker Kpler showed that only seven commodity ships sailed through the strait on Thursday, down sharply from more than 130 per day before the war began. Previous ceasefire deals brokered in April and June both collapsed, leaving international shipping vulnerable to attacks that have killed thousands and raised global fuel costs.

International Posture and Economic Strains

The renewed economic campaign has drawn varied responses from global trading partners. China, which purchased more than 80 percent of Iran’s shipped oil according to 2025 Kpler analytics data, rejected the U.S. sanctions threat, maintaining that such measures do not help resolve the crisis.

Domestically, Iran has navigated near-continuous economic sanctions for nearly five decades following the 1979 Islamic Revolution. The current conflict has exacerbated high inflation, weakened the national currency, and caused widespread energy shortages and infrastructural damage. Treasury Secretary Bessent indicated that he will provide the specific operational details of the upcoming sanctions during a scheduled press conference.