The war has produced regime change, but Iran’s new leaders are more willing to take risks and believe they have already absorbed the worst that America and Israel can deliver.

A U.S. helicopter crash spurred an escalation that led both sides to back down and negotiate.

In recent weeks, Iran has dramatically escalated efforts to seal off its cache of near bomb-grade uranium, deliberately collapsing tunnels and booby-trapping entrances with explosive mines, according to five sources familiar with US intelligence.

The former Supreme Leader will be mourned in public more than four months after his death, a lengthy delay amid the war with the U.S.

Pakistan's prime minister says the United State and Iran have agreed to wording of an agreement aimed at ending their war in the Middle East.

Rich Edson reports from the White House, announcing a successful US strike by Southern Command that eliminated the leader of the violent Tren de Aragua gang in Venezuela. Concurrently, US and Iranian officials signal an 80% complete peace deal to dismantle Iran's nuclear program and reopen the Strait of Hormuz,

Follow NBC News live updates for the latest on the Iran war which President Donald Trump had signaled a deal is close to ending, despite tensions in Hormuz.

Central Command called the attack "a proportional response to unjustified Iranian aggression."

According to intelligence assessments, Tehran currently retains about three-quarters of the weapons stockpile it had before the war and is capable of rapidly replenishing its arsenal if necessary. The inventory may also include Russian missiles produced over the past year.