As Israel and Iran exchange strikes for a fourth day, there are growing suggestions President Donald Trump knew more about Israel’s initial plans of attack than the White House is letting on, with a U.

Israel and Iran exchange airstrikes targeting military sites and nuclear facilities, with Trump comments on the conflict and expressing optimism for diplomatic resolution.

An Israeli plan to assassinate Iranian Supreme Leader Ayatollah Ali Khamenei as part of its military offensive targeting the country's nuclear program has been privately vetoed by U.S. President Donald Trump.

"The full strength and might of the U.S. Armed Forces will come down on you at levels never seen before," Trump warned.

Trump warns Iran not to retaliate against U.S. targets in the Middle East while also predicting Israel and Iran would 'soon' make a deal to end their escalating conflict.

Also looming over the meeting are President Trump's inflammatory threats to make Canada the 51st state and take over Greenland.

U.S. President Donald Trump warned on Sunday that any attack against the U.S. will be met with the "full strength and might" of the U.S. military.

Israel’s attack on Iran was long in the making – the result of years of meticulous planning by Israel and days of high-stakes talks between Tel Aviv and Washington, officials told CNN.