Iran live updates: 7th killed service member is identified

President Donald Trump said at the White House that he grieves for the four U.S. service members who have been killed.

"In their memory, we continue this mission with ferocious, unyielding resolve to crush the threat this terrorist regime poses to the American people," he said.

"We have the strongest and most powerful -- by far -- military in the world, and we will easily prevail," he said.

As for a timeline, Trump said the U.S. is "already substantially ahead of our time projections, but whatever the time is, it's OK."

"From the beginning, we projected four to five weeks, but we have capability to go far longer than that," he said.

"The United States military continues to carry out large-scale combat operations in Iran to eliminate the grave threats posed to America by this terrible, terrorist regime," President Donald Trump said Monday in his first public remarks since the strikes on Iran began Saturday.

Trump said Iran's nuclear program was obliterated in "Operation Midnight Hammer," the U.S. strikes on Iran in June 2025. He said the U.S. "warned Iran not to make any attempt to rebuild at a different location, because they were unable to use the ones we so powerfully blew up."

"But they ignored those warnings and refused to cease their pursuit of nuclear weapons," Trump said at the White House. "In addition, the regime's conventional ballistic missile program was growing rapidly and dramatically, and this posed a very clear, colossal threat to America and our forces stationed overseas. The regime already had missiles capable of hitting Europe and our bases, both local and overseas, and would soon have had missiles capable of reaching our beautiful America."

"An Iranian regime armed with long-range missiles and nuclear weapons would be an intolerable threat to the Middle East, but also to the American people," he said. "Our country itself would be under threat, and it was very nearly under threat."

Ayatollah Ali Khamenei, the supreme leader of Iran who was killed in Saturday's strikes, was having a breakfast meeting with senior aides at the time, and they were "thinking they were safe because it was in broad daylight," President Donald Trump told Fox News.

Trump also told Fox News that 49 senior Iranian leaders were killed in the initial strikes. Over the weekend, Trump said 48 senior leaders were killed.

-ABC News' Fritz Farrow

President Donald Trump told CNN on Monday that the U.S. military is "knocking the crap" out of Iran and the "big wave" is yet to come.

"We haven't even started hitting them hard. The big wave hasn't even happened. The big one is coming soon," Trump told CNN's Jake Tapper in a phone call.