President Trump also asserted the U.S. knows "exactly where" Iran's supreme leader Ayatollah Khamenei "is hiding."

President Trump called for Iran’s ‘unconditional surrender’ on Tuesday. Israeli officials have been pushing the United States to use its huge bunker-busting bomb to crush Iran’s nuclear capabilities.

"We now have complete and total control of the skies over Iran," Trump posted on Tuesday, making clear the U.S. and Israel were now in lockstep on the Israeli military operation that the U.S. didn't initially back. "Nobody does it better than the good ol’ USA," he added.

The United States is closer to a potential major military confrontation than we have ever have been in the Trump era. But discerning where President Donald Trump’s head is at is proving a very difficult exercise.

The conflict between Iran and Israel continues for a fifth day. President Trump says U.S. knows location of Iranian Supreme Leader Ayatollah Ali Khamenei. Follow along for live updates, news and analysis as the conflict unfolds.

Mr Trump is drawn to success and Israel has momentum: the IAEA, a nuclear watchdog, has just confirmed damage to underground enrichment halls at Natanz, a nuclear site. The rate of Iranian strikes on Israel is falling.

Some longtime defenders of the president’s America First mantra are calling him out for weighing a greater U.S. role in the region.

Israel’s military campaign reminds some of America’s ill-fated Middle East interventions, which President Trump has long denounced.