US President Donald Trump said there would be "no deal with Iran except unconditional surrender" and the selection of what he called "a great and acceptable leader," he wrote on Truth Social on March 6.

Trump said that after those conditions were met, the US and its allies would "work tirelessly to bring Iran back from the brink of destruction, making it economically bigger, better, and stronger than ever before."

"Iran will have a great future. Make Iran Great Again (MIGA!)," he wrote.

The post represents Trump's most explicit statement yet on conditions for ending the military campaign, going beyond previous calls for regime change to demand that Tehran capitulate entirely and accept a leader Washington considers suitable.

The demand for an "acceptable" leader came as Iran's Assembly of Experts was reported to be deliberating over the selection of a successor to Ayatollah Ali Khamenei, with his son Mojtaba Khamenei emerging as the front-runner. Trump had previously claimed the strikes "knocked out most of the candidates."

Iran's President Masoud Pezeshkian said on the same day that Tehran was "committed to lasting peace" but would not show "the slightest hesitation" in defending the country's sovereignty, directing mediation efforts at those who "started the fire by underestimating the people of Iran."

Senior adviser Ali Larijani had earlier denied reports of peace overtures to Washington via Omani intermediaries, posting on X: "We will not negotiate with the United States."

The US-Israeli military campaign against Iran entered its seventh day on March 6, with more than 1,000 people killed in Iran and fighting spreading across the Persian Gulf, Iraq, Lebanon and Jordan.