Iran has formally transmitted its response to a 15-point US proposal through intermediaries, setting out sweeping conditions for any end to hostilities, including war reparations and guarantees against further military action.

An informed source told Tasnim News Agency on March 26 that Tehran's response was sent on the night of March 25 and that Iran was now awaiting a reply from Washington.

According to the source, Iran's conditions include a full halt to what it described as "aggression and assassination" by the enemy, the creation of objective conditions guaranteeing the war will not be repeated, guaranteed payment of war reparations, an end to hostilities on all fronts covering all resistance groups that participated in the conflict across the region, and formal recognition of Iran's sovereign right to control the Strait of Hormuz.

The source said these conditions are separate from demands Iran presented during a second round of talks in Geneva held days before the US and Israeli strikes began in late February.

The source added that Tehran was convinced the US negotiating posture was what it called a "third deception project," accusing Washington of pursuing three objectives under the cover of diplomacy: presenting a false image of seeking peace, keeping global oil prices suppressed, and buying time to prepare for a ground incursion into southern Iran.

"The Americans started the war during negotiations both in the 12-day war and in the Ramadan war, and this time they are again using the lie of negotiations to lay the groundwork for a new crime," the source said.

The response came as Trump himself issued a stark warning to Iranian negotiators on March 26, saying Tehran was "begging" Washington for a deal after being "militarily obliterated, with zero chance of a comeback."

"They better get serious soon, before it is too late, because once that happens, there is NO TURNING BACK, and it won't be pretty," Trump wrote on Truth Social.

In a later cabinet meeting, Trump said, "They are now admitting to themselves that they have been decisively defeated. They are telling to people, “This is a disaster—they know it.” That’s why they’re talking to us; otherwise, they wouldn’t be.

They’re talking to us because they have a disaster on their hands. They’re defeated. They can’t make a comeback."

He added, "I thought the oil prices would go up more, and I thought the stock market would go down more. It hasn't been nearly as severe as I thought."