U.S. military action against Iran began after intelligence indicated an imminent Israeli strike on Iranian leadership. Officials assessed that any attack on Iran would trigger retaliation against U.S. personnel in the Middle East.

The U.S. response was framed as a preemptive measure to prevent escalation that would endanger American service members. U.S. officials stated that Iran’s retaliation against Israel would inevitably include attacks on U.S. military positions.

Israeli strikes on southern Lebanon have resulted in at least 31 fatalities. U.S. Secretary of War Pete Hegseth confirmed that future operations would not be constrained by prior rules of engagement.