Trump says damage to Iran's nuclear sites is 'far below ground level'

The U.S. and Israel had practiced this attack in a military exercise about a year ago, a source in Israel with direct knowledge of the matter confirmed to ABC News.

That exercise was unprecedented because it war-gamed offensive actions against Iranian nuclear capabilities for the first time, according to the source.

This was first planned under the Biden administration, according to the source, who said, "But we did not think a year ago that this would happen now."

-ABC News' Matt Gutman

The White House released several photos from the Situation Room on Saturday.

President Donald Trump alongside Vice President JD Vance, Secretary of State Marco Rubio, Defense Secretary Pete Hegseth, Joint Chiefs of Staff Gen. Dan Caine, White House Chief of Staff Susie Wiles and others.

A press conference will be held at the Pentagon at 8 a.m. Sunday with Defense Secretary Pete Hegseth and Joint Chiefs of Staff Gen. Dan Caine, Trump said.

Trump particularly thanked Israeli Prime Minister Benjamin Netanyahu in his remarks.

"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 said.

The president additionally thanked the Israeli military, Joint Chiefs of Staff Gen. Dan Caine and the "great American patriots who flew those magnificent machines tonight."