The U.S. military said Monday that the number of Americans killed during the ongoing conflict with Iran now stands at six.

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 ...

Trump said the strikes were intended to eliminate "imminent threats" from Iran and prevent the country from obtaining a ...

Defense Secretary Pete Hegseth spoke Monday to widening concerns that the U.S.-Israeli strikes in Iran could spiral into a ...

We're not going to go into the exercise of what we will or will not do,” Defense Secretary Pete Hegseth told reporters.

Neither the president nor the military are ruling out "boots on the ground" as the campaign against Iran intensifies ...

Associate Professor and Chair of Classics Richard Fernando Buxton taught students in Block 5 about how warfare was conducted ...

President Trump refused to rule out the use of ground troops in Iran in a new interview on Monday, saying he wouldn't ...

Three American service members have been killed and casualties are reported in the UAE, Israel and Kuwait as Israel and Iran continue to trade strikes.

Secretary Hegseth declares Operation Epic Fury a generational turning point, rejecting "endless war" while preparing for difficult regional combat.

Speaking at a Medal of Honor ceremony at the White House, the president said Iran ignored the United States' warnings to ...