Follow live NBC News coverage and latest updates on the Iran war, as Tehran attacks ships around the Strait of Hormuz, the price of oil spikes and Israel strikes Lebanon.

Trump's military campaign against Iran is facing unexpected resistance, as officials report 140 U.S. service members were wounded in initial strikes.

President Trump says the U.S. has diminished Iran's military and regime and will continue to expand its targets inside Iran.

After months of not-so-thinly veiled threats, President Trump launched a U.S. attack on Iran over the weekend, killing Ayatollah Ali Khamenei and risking a prolonged conflict in the region. “We continue this mission with ferocious,

Polling of the Iran war is still a confusing picture, but at least for now, pessimism and uncertainty about the benefits still seem to be the prevailing takeaway.

A perfect system is no longer the deciding factor. The Patriot missile is a high-performance system. Yet, if we don’t have enough guided missiles, can’t replace them quickly, or buy them without breaking the bank, then even the Patriot will ultimately fall victim to asymmetric overload.

New: Iran announced a new leader over the weekend: Mojtaba Khamenei, son of the country’s former supreme leader Ayatollah Ali Khamenei. He’s 56 years old, and is thought to be “considerably more violent and ideological than his father,” according to Graeme Wood of The Atlantic .

The war against Iran is getting bigger and deadlier. American and Israeli strikes have pummeled Iran on land and at sea. Iran’s retaliatory drones and missiles flew toward targets across the Middle East. And Israel is now striking Lebanon. In an interview last night, President Trump told The Times that the assault could last “ four to five weeks .”