Trump warned that "the full strength" of the U.S. military would come down on Iran should it attack American assets, but added that the U.S. "can easily get a deal done between Iran and Israel."

Planned talks on Iran's nuclear program, which could provide an off-ramp, were called off.

Still uncertain is whether Trump's attempt to reach an agreement with Iran to halt uranium enrichment is still viable, with a sixth round of talks still scheduled for Sunday in Oman but now in doubt ...