Follow NBC News' live coverage as Iran responds to Hezbollah leader Hassan Nasrallah's killing in an Israeli strike.

Hezbollah’s leader Hassan Nasrallah’s death left a void at the top of the world’s most heavily armed nonstate militia. WSJ's ...

The devastating blow to Hezbollah by Israel has a place in the global struggle between the “coalition of inclusion” and ...

Leaders in Tehran suggested it would be the Lebanese militia that would strike back at Israel after the killing of Hassan ...

Diplomats, analysts and officials throughout the region and in the West agree that an all-out war between Iran and Israel ...

In a pre-recorded interview that aired Sunday on CNN's "Fareed Zakaria GPS," President Masoud Pezeshkian placed the blame for ...

Israel has killed Hezbollah's leader - but this may bring the region one step closer to a much wider conflict.

Iran's parliament speaker Mohammad Baqer Qalibaf said on Sunday that militant groups would carry on confronting Israel with ...

A succession of Israeli strikes have reset the military calculus in the Middle East, but it remains just as dangerous.

The IDF says it killed Nabil Qaouk - a key member of its central council - in Lebanon on Saturday; Hezbollah has not ...

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The operation killing Hezbollah General Secretary Hassan Nasrallah in Beirut represents a dramatic shift in Israeli strategy.