Follow live NBC News coverage and latest updates as the Iran war hits oil prices, Iran vows to block the Strait of Hormuz and ...

The Pentagon said a Space Brigade sergeant was killed and the price of oil increased after Iran named Mojtaba Khamenei as supreme leader and then launched new attacks at Israel and Gulf states.

The president told reporters at a news conference in Florida that the fighting is “going to be ended soon” but added that the U.S. would strike Iran harder if needed.

The investigative group Bellingcat says newly released video “appears to contradict” U.S. President Donald Trump’s claim that Iran was responsible for an explosion at an Iranian school that killed ...

Presidents have sidestepped Congress to launch limited military strikes for decades. Trump’s decision to attack Iran is an aggressive escalation.

The video is the latest indication of likely U.S. involvement in the attack on Feb. 28 that killed dozens of children in the southern Iranian city of Minab.