Former U.S. President Donald Trump declared on Monday that Iran could be "taken out in one night, and that night might be tomorrow night." Speaking at a White House news conference, Trump indicated a Tuesday night deadline for Iran to agree to a ceasefire deal. Failure to comply, he warned, would result in attacks on critical infrastructure, including power plants. Trump cited the weekend's events, including two U.S. military planes being shot down by Iran, as a backdrop to his ultimatum.

Iran reportedly rejected the latest ceasefire proposal, instead seeking a permanent end to the conflict. Trump reiterated the importance of reopening the Strait of Hormuz, through which a significant portion of the world's oil is shipped. He stated a deal "acceptable to me" was required by Tuesday, or the U.S. would "set the country back to the stone ages."

U.S. Defense Secretary Pete Hegseth also indicated that extensive strikes against Iran were planned for Monday, with more anticipated on Tuesday. Trump expressed disappointment with NATO, South Korea, Australia, and Japan for their perceived lack of support in the conflict with Iran, calling NATO a "paper tiger."