Mohsen RezaeiDonald TrumpScott BessentFinancial TimesU.S. Department of the Treasury

US threatens Iran with 'economic D-Day' as Treasury Secretary Bessent prepares to announce 'toughest sanctions in history'; Iran's security chief warns of 'earthquake-like' confrontation

The U.S. is poised to unveil its most severe sanctions against Iran, termed 'economic D-Day' by Treasury Secretary Scott Bessent, who warns of a financial offensive aimed at crippling Tehran's economy. Iran's security chief threatens an 'earthquake-like' response to any U.S. actions.

The Independent The Independent+1 source24 August 2026 · 15:24 UTC
CuriousCats Full Story

U.S. Treasury Secretary Scott Bessent is set to announce what he calls an 'economic D-Day' against Iran, describing it as the toughest sanctions in history. This initiative follows President Trump's assertion that Iran is "completely collapsing" and aims to sever all economic lifelines supporting the Iranian regime.2

Bessent emphasized that the sanctions will be the single greatest financial offensive ever directed at an adversary, with the objective of isolating Tehran economically. He stated, "We are entering the endgame" as the measures are set to begin at dawn.8

In response, Iran's security chief, Mohsen Rezaei, condemned the U.S. plans as "economic terrorism" and warned of an "earthquake-like" confrontation if the U.S. proceeds. He also threatened to halt oil exports through the Persian Gulf if neighboring countries participate in the sanctions.3

Bessent's announcement is expected to include secondary sanctions targeting nations and entities that continue to engage with Iranian oil and finance, layered on top of existing naval blockades. The official announcement is scheduled for a press conference at approximately 6pm BST/1pm ET on Monday, with oil prices already reflecting the heightened tensions, trading lower amid the escalating rhetoric.5

Key Insight
“Bessent's plan targets secondary sanctions on nations buying Iranian oil, layered on the existing naval blockade, aiming to 'sever every economic lifeline' until Tehran stands alone. Iran's Mohsen Rezaei threatened to halt all oil exports through the Persian Gulf and Strait of Hormuz if Gulf states participate, while Brent crude fell 2% to $91.5.”
LIVE: US Treasury Secretary Scott Bessent outlines 'Economic D-Day' sanctions against Iran
CuriousCats Shorts-list
LIVE: US Treasury Secretary Scott Bessent outlines 'Economic D-Day' sanctions against Iran
US prepares to reveal 'economic D-Day' for Iran
CuriousCats Shorts-list
US prepares to reveal 'economic D-Day' for Iran
Iran war: Trump admin to unveil 'economic D-Day' sanctions
CuriousCats Shorts-list
Iran war: Trump admin to unveil 'economic D-Day' sanctions
CuriousCats studied:
1
The IndependentThe Independent
“President Donald Trump has declared that Iran is "completely collapsing" ahead of an expected announcement regarding a major package of punitive economic measures against Tehran.”
The Independent →
2
Euronews.comEuronews.com
“US Treasury Secretary Scott Bessent has announced the launch of what he calls an 'economic D-Day' against Iran, describing the campaign as the single greatest financial offensive ever directed at an adversary, with further details due later on Monday.”
Euronews.com →
Ask CuriousCats
What are the proposed sanctions against Iran?
Who is Treasury Secretary Bessent?
Why is Iran's security chief warning of retaliation?
Are other countries affected by these sanctions?
How does this impact global oil prices?
Get your CIA-level briefing,
in real time.
CuriousCats monitors the internet every minute for you and brings you the most personalized brief of videos, social media posts, news and more.
Download the App
Liked the depth here?
Get the full internet briefed for you any time of the day.
Get CuriousCats