Live Updates: Iran warns “geography of the war” would expand in response to any new U.S. assault

Updated on: September 21, 2026 / 5:05 AM EDT / CBS News

Iran's powerful Islamic Revolutionary Guard Corps warned Monday that any new U.S. assault would be met with an expansion of the already-complex regional conflict to new areas.

"If a new aggression occurs, we will certainly change the weaponry and the geography of the war," IRGC spokesman Hossein Mohebbi said Monday according to the country's semi-official Fars news agency.

Mohebbi added that Tehran was prepared for the nearly seven-month war to drag on.

The statement came after President Trump reiterated on Sunday that he was poised to make a decision on whether to re-intensify U.S. attacks on Iran that he previously said could "annihilate" the country's Islamic Republic regime, or to seek a new diplomatic agreement to end the war.

Mr. Trump told Fox News he was "probably" open to the idea of meeting with Iranian President Masoud Pezeshkian this week on the sidelines of the United Nations General Assembly in New York.

President Trump told Fox News that he's in a "deciding mode" on Iran, forecasting "very big things" to come in the near future as he considers his options in the war.

Fox News' Trey Yingst said…

Original source: https://www.cbsnews.com/entertainment/