Known as the "mother of all bombs," the MOAB is 30 feet long, weighs 21,600 pounds and is packed with 18,000 pounds of explosives http://cnn.it/2pegOrG | CNN

MOAB: This is what the largest non-nuclear bomb the United States has ever used in combat looks like as it hits an Islamic State target in Afghanistan. MORE: bit.ly/2ofbJeb | KUTV 2News

In this United States Air Force handout, a Massive Ordnance Air Blast (MOAB) bomb, explodes November 21, 2003 at Eglin Air Force Base, Florida. At 21,700-pounds, it's the largest non-nuclear bomb ever used in combat by the U.S. military. This is the same bomb U.S. forces used to strike an Islamic State tunnel complex in eastern Afghanistan today. Read more: http://bit.ly/2nK1MKx | SFGATE