Tehran’s government and military issued warnings of retaliation Monday after the United States announced a sweeping new sanctions package targeting the regime’s economic lifelines, with an Iranian minister saying the country would no longer be purely defensive in its response.
Treasury Secretary Scott Bessent announced the package on Aug. 24, calling it Operation Economic Outcast and describing it as an economic D-Day aimed at severing the financial and commercial ties that allow the regime to sustain its operations. The measures include consequences for the regime’s trade partners, targeting the network of countries and entities that continue to do business with the regime despite existing restrictions.
The economy minister responded to state television by saying the country is fully prepared for the sanctions and has its own tools to play the game. He described the American measures as an economic terrorist attack but said the country knows how to respond. He said neither China nor Russia had accepted the American measures, framing those relationships as sources of resilience.
The IRGC threat
Brigadier General Hossein Mohebbi, a spokesperson for Iran’s Islamic Revolutionary Guard Corps, went further. He vowed what he described as heavy blows to American vital interests and energy chokepoints if Iran’s infrastructure is threatened. Press TV reported his statement, which was directed at the escalating pressure campaign from Washington.
The IRGC threat to energy chokepoints is significant because the Strait of Hormuz and surrounding waterways are already at the center of the conflict. The United States has been enforcing a naval blockade of the country since February, and the volume of commercial shipping through the strait has already been significantly reduced. A threat to regional oil infrastructure would represent a further escalation beyond the existing naval standoff.
The sanctions and their targets
Operation Economic Outcast is the latest in a series of escalatory financial measures deployed since the conflict began. Sanctions that target third-country trade partners are among the most aggressive tools available because they force other governments and companies to choose between their commercial relationships with Tehran and their access to the American financial system.
China and Russia have been the most significant obstacles to the effectiveness of previous sanctions, providing alternative trade relationships and financial channels that have cushioned the impact. Madanizadeh’s statement that neither country has accepted the U.S. measures reflects a deliberate framing of the geopolitical alignment, though the practical extent of Chinese and Russian support for Iran’s economy amid an active conflict has limits that neither government has publicly disclosed. Additional sanctions pressure may test those limits.
The broader context
The Aug. 24 Operation Economic Outcast sanctions announcement came after the 60-day memorandum of understanding between the United States and Iran expired earlier in August without a final peace agreement. Trump said at the time that no talks are scheduled and that the naval blockade remains in full effect.
The Iranian government has consistently maintained it can sustain the confrontation indefinitely, while the Trump administration has argued that the accumulated pressure will eventually force a deal on terms acceptable to Washington. Neither position has yet produced a resolution.

