How the Pentagon Made a Bunker Buster Specifically for Fordow

WASHINGTON—The United States’s B-2 stealth bomber strike on Iran’s Fordow uranium enrichment facility was the culmination of more than 15 years of study and planning, according to Chairman of the Joint Chiefs of Staff Gen. Dan Caine. Caine joined Defense Secretary Pete Hegseth for a press briefing on June 26, in which the defense secretary said the June 21 bombing mission was a resounding success that set Iran’s nuclear development back by years. Caine detailed the military planning that began in 2009 to design a purpose-built method to knock out the Fordow facility, which is buried hundreds of feet underground in a mountainous region of Iran....