Trump said when the invasion began his objective was to "defend the American people by eliminating imminent threats from the Iranian regime, a vicious group"

The US president laid out some of his objectives on Monday, but made no mention of what Iran's future might look like after the war.

The military campaign has killed Supreme Leader Ayatollah Ali Khamenei, sunk at least 10 Iranian warships and struck more than 1,000 targets.