The United States has dropped its largest non-nuclear weapon after it targeted ISIS a network of caves and tunnels in eastern Afghanistan.

U.S. forces used a GPS-guided GBU-43 bomb, which is 30 feet long and weighs a staggering 21,600 pounds.

It is known as the "Mother Of All Bombs" – a play on "MOAB," an acronym that stands for "Massive Ordnance Air Burst."  

A crater left by the blast is believed to be more than 300 meters wide after it exploded six feet above the ground. Anyone at the blast site was vaporized.

President Donald Trump told reporters at the White House that he was "very, very proud" and called the operation "really another successful job. We"re very, very proud of our military."

The Pentagon is denying that the attack was a revenge strike despite the fact that it came in the same area of Afghanistan where a Green Beret soldier was killed on Saturday.