I'm David Enders, and this is the take.

As the U.S.-Israeli war in Iran continues, we're bringing you this update.

U.S. President Donald Trump announced a blockade of the Strait of Hormuz after talks between Iran and the U.S.

failed to produce an agreement.

Israel continued to attack Lebanon ahead of planned talks between those countries on Tuesday.

Today is Monday, April 13.

It has been 45 days since the U.S. and Israel attacked Iran, killing at least 2,000 people.

Following President Trump's announcement, the U.S. military said it would prevent

any shipping traffic through the Strait of Hormuz as of 10 a.m. Washington time on Monday.

Al Jazeera's Heidi Joe Castro reported from Washington, D.C.

After U.S. Iranian talks in Islamabad failed to produce a deal on any of Washington's demands,

the Trump administration decided to escalate the crisis once again, announcing a U.S.

naval blockade of the Strait of Hormuz first described by President Trump as targeting any and all ships

trying to enter or leave the strait, and later, defined by U.S.

Central Command, as only impacting vessels destined to or from Iranian ports.

Iran has refused to reopen Hormuz to international shipping until there is a final peace deal,

choking off 20% of the world's supply of crude oil. The weekend negotiations in Pakistan were the highest-level face-to-face talks between U.S. and Iranian leadership in nearly five decades.

Trump said the meeting went well, but that Iran refused to give up its nuclear program the only point that mattered, he said.

And as the U.S. delegation flew back to Washington empty-handed,

Trump returned to his threats, writing,

"...any Iranian who fires at us or at peaceful vessels will be blown to hell

and that U.S. forces will finish up the little that is left of Iran.

...