Trump says future attacks on Iran will be far greater if no peace agreed

US President Donald Trump declared the American strikes on Iran’s nuclear sites a spectacular success, warning of far greater attacks to come if Tehran refuses peace.

"Our objective was the destruction of Iran's nuclear enrichment capacity and a stop to the nuclear threat posed by the world's number one state sponsor of terror," US President Donald Trump said in his speech at the White House.

"Tonight, I can report to the world that the strikes were a spectacular military success. Iran's key nuclear enrichment facilities have been completely and totally obliterated."

"Iran, the bully of the Middle East, must now make peace. If they do not, future attacks will be far greater and a lot easier," Trump added.

"If peace does not come quickly, we will go after those other targets with precision, speed and skill, most of them can be taken out in a matter of minutes."

"I want to thank and congratulate Prime Minister Bibi Netanyahu. We worked as a team like perhaps no team has ever worked before, and we have gone a long way to erasing this horrible threat to Israel," Trump continued.

"God bless the Middle East. God bless Israel and God bless you, America. Thank you very much."