Greg Myrie

bases throughout the region since the war began a month ago.

Overall, the Pentagon has put the U.S.

casualty toll at 13 killed and more than 300 injured.

Greg Myrie, NPR News, Washington.

President Trump and the Pentagon have reported major progress in destroying Iran's missiles, but haven't released specific figures.

An American official, who's not authorized to speak publicly, told NPR that the U.S.

has only been able to confirm the elimination of around one-third of Iran's missile capabilities.

The missile program consists of multiple elements, factories that make the weapons, launchers that fire them, and the missiles themselves.

Overall, Iranian missile attacks have dropped dramatically since the early days of the war.

Still, missiles, along with drones, remain Iran's most effective weapons.

Greg Myhre, NPR News, Washington.

Saudi Arabia and the UAE have developed real concerns about the prospect that Donald Trump could say, you know what, it's over, that's it, we won, declare victory and walk away.

Iran would end up weakened but radicalized.

Iran has lost most of its conventional military power, but it's still very well positioned to carry out attacks from the rugged coastline with drones or with these fast boats in the Gulf.

and particularly around the Strait of Hormuz, which is just 21 miles wide.

The Gulf has really become a giant parking lot for ships.

There's some 3,000 oil tankers, gas tankers, cargo ships, all stranded according to the UN's shipping agency.

These ships are unwilling to challenge the Iranians.

And the U.S.

Navy only has around 20 ships in the region.