The president's message — coming after days of mixed signals from administration officials — articulates that the U.S. has no intention of providing Tehran with an off-ramp.

Trump's call for full capitulation came hours after Iran's president said mediation efforts to end the war were under way.

Israeli airstrikes are pounding the capitals of Iran and Lebanon as the U.S. apparently struck an Iranian drone carrier at sea

US President Donald Trump started a war with Iran last week. The American and Israeli bombing campaign has killed more than a thousand people, according to Iranian state media. Iran’s retaliatory strikes threaten to cut off all energy exports in the coming days.

The White House has never ruled out eventually sending troops into Iran even as officials continue to hope it proves unnecessary.

A U.S. submarine sank an Iranian warship in the Indian Ocean, as Washington and Israel intensified their bombardment Wednesday of Iran's security forces and other symbols of power. Iran launched more missiles and drones and warned of the destruction of military and economic infrastructure across the Middle East.

Israel said it is bombarding regime targets in the Iranian capital of Tehran and the militia Hezbollah in the Lebanese capital of Beirut early Friday morning, on day seven of an intensifying U.S.-led war that is spreading across the Middle East.

House lawmakers on Thursday rejected a war powers resolution to halt Trump’s attack on Iran, a day after the Senate voted down a similar measure