Maya Eliasson

NPR's Maya Eliasson reports.

Trump told Fox News it wouldn't take long to clean out the Strait.

Just hours after talks between the U.S.

and Iran failed to reach an agreement to end the war, President Trump posted that effective immediately, the U.S.

Navy will begin the process of blockading any and all ships trying to enter or leave the Strait of Hormuz.

That means Iran could not export its oil through the Strait or collect tolls from other countries' ships.

But since it would also prevent any oil from coming through the Strait, it's not clear how the blockade will help bring down the price of gas.

Those high prices were caused by closing off one of the most important choke points for the global oil and gas market.

The president also posted...

that any Iranian who fires at the U.S.

or any other peaceful vessels will be, quote, blown to hell.

Mara Liason, NPR News.