President Trump ordered a game-changing U.S. military attack that killed Iranian Gen. Qassem Soleimani, the head of the Islamic Revolutionary Guard Corps' elite Quds Force, among other military officials at Baghdad International Airport early Friday, the Pentagon confirmed.

Soleimani is the military mastermind whom Secretary of State Mike Pompeo had deemed equally as dangerous as Islamic State leader Abu Bakr al-Baghdadi. In October, Baghdadi killed himself during a U.S. raid on a compound in northwest Syria, seven months after the so-called ISIS "caliphate" crumbled as the terrorist group lost its final swath of Syrian territory in March.

Iran's Foreign Minister Javad Zarif tweeted after the attack "The US' act of international terrorism, targeting & assassinating General Soleimani—THE most effective force fighting Daesh (ISIS), Al Nusrah, Al Qaeda et al—is extremely dangerous & a foolish escalation."

He added that the U.S. "bears responsibility for all consequences of its rogue adventurism."