Follow NBC News' live coverage as the U.S. and Israel attack Iran, Tehran hits back across the Gulf, and Hezbollah strikes from Lebanon, while Iran chooses a new supreme leader after the killing of ...

US Iran War LIVE updates: As the war between the US and Iran continues to escalate, American nationals across the Middle East ...

Israel said it is hitting missile launch sites and weapon storage facilities in Lebanon belonging to Hezbollah, after the Iran-backed group fired missiles at Israel. NBC News’ Daniele Hamamdjian ...

Israel says it has killed an intelligence head in Iran-backed Hezbollah, which fired on Israel in response to Ali Khamenei's ...

With no sign of the conflict abating anytime soon, President Trump said operations are likely to last four to five weeks but that he was prepared “to go far longer than that.” ...

The US-Israel-Iran war enters Day 4 with Iran striking US bases and Gulf nations after Khamenei’s killing. Israel hits Hezbollah in Lebanon as Trump warns the conflict may last weeks. Tehran rules out ...

The State Department urged U.S. citizens to leave more than a dozen Middle Eastern countries due to safety risks.

Amid ongoing strikes against Lebanon, the Israel Defense Forces said, "The strikes continue - their intensity will increase." ...

As the war in the Middle East spirals further, U.S. President Donald Trump said on Monday that the U.S. has “the capability ...

The US and Israel's war on Iran is entering its fourth day, while the regime in Tehran launches renewed attacks against America's allies in the Middle East. Meanwhile, Britain's Sir Keir Starmer has ...

How long will the conflict between the U.S. and Iran last? President Trump shared a timeline on Monday. (AP Photo) ...