A top Iranian official told CNN that Tehran is prepared for a long war. Meanwhile, oil surged past $100 a barrel as the economic fallout deepens. Follow for live news updates.

President Donald Trump said the conflict with Iran began after U.S. intelligence determined the country was starting work on a new facility to produce material for nuclear weapons, describing the site ...

Recovering Iran’s remaining highly enriched uranium stockpile that is believed to be sitting in a storage facility deep underground, an objective the Trump administration has been discussing, would ...

Follow live NBC News coverage and latest updates as Trump says oil price rises are a small price to pay, Iran names Mojtaba ...

The IAEA estimates that when Israel launched its first attacks in June, Iran had 440.9 kg of 60% uranium. If enriched further, that would provide the explosive needed for 10 nuclear weapons, according ...

The US president says he is "more determined than ever to achieve ultimate victory", hours after telling CBS News the war is ...

Iran-US war latest: Trump claims US has ‘already won’ conflict but hasn’t ‘won enough’ - Trump claimed Iran was going to ...

U.S. President Donald Trump had a call with Russian President Vladimir Putin to discuss the war in Iran and other issues. According to the Kremlin, Monday's “frank and businesslike” conversation ...

Oil prices surged and markets slid Monday after hard-line Ayatollah Mojtaba Khamenei was chosen to succeed his late father as Iran’s supreme leader, signaling that Iran was digging in 10 days into the ...

The evidence contradicts President Trump’s claim that Iran was responsible for a strike at the school that killed 175 people, most of them children.

How the U.S.-Iran war began, why oil prices are rising and how Texas leaders like Gov. Greg Abbott are responding.