US Announces ‘Economic D-Day’ Against Iran as Tehran Vows Sanctions Will Fail

The United States is preparing to launch sweeping new sanctions against Iran, with Treasury Secretary Scott Bessent describing the upcoming measures as an unprecedented financial offensive against Tehran.

The announcement comes amid escalating tensions between Washington and Tehran and growing concerns over disruptions to oil shipments through the strategically important Strait of Hormuz.

US Prepares Major New Sanctions on Iran

Scott Bessent said the Trump administration would unveil the new measures on Monday, describing the campaign as an effort to cut off the economic networks sustaining the Iranian government.

In a statement posted on X, Bessent claimed that the US had already significantly weakened Iran's military capabilities and was now entering what he described as the next phase of its confrontation with Tehran.

He warned that Washington would deploy its financial and enforcement agencies to intensify economic pressure on Iran.

Bessent is expected to provide further details during a scheduled press conference at 2 pm EDT on Monday.

China Could Face Pressure Over Iranian Oil Trade

The Trump administration has also warned countries and entities against helping Iran bypass economic restrictions.

China remains one of the biggest buyers of Iranian crude oil. According to 2025 data cited by Kpler, China accounted for more than 80% of Iran's shipped oil exports.

The US could therefore increase pressure on companies, financial networks and foreign entities involved in maintaining Iran's oil trade.

Iran Rejects US Threats

Iranian Foreign Minister Abbas Araqchi dismissed the expected sanctions, accusing Washington of returning to failed strategies.

Araqchi said Iran had faced military and economic pressure before and argued that the new sanctions would not force Tehran to change its position.

He called on the US to pursue engagement based on what he described as mutual respect and a fair settlement rather than continued economic pressure.

Strait of Hormuz Crisis Raises Global Oil Concerns

The confrontation is unfolding alongside disruptions in the Strait of Hormuz, one of the world's most important energy shipping routes.

Restrictions on tanker movement through the waterway have disrupted oil shipments and contributed to pressure on global crude markets. Any prolonged disruption could affect energy prices and supply chains across Asia and other major importing regions.

With Washington preparing a new sanctions offensive and Tehran showing no sign of backing down, the US-Iran confrontation could enter another volatile phase in the coming days.