The White House announced on Sunday that the United States was not given prior notice of the Israeli airstrike that resulted in the death of Hezbollah leader Sayyed Hassan Nasrallah in a suburb of Beirut. National security spokesperson John Kirby emphasized the U.S.'s "ironclad" support for Israel while expressing concern over the potential civilian casualties caused by the strike. Kirby stated that the U.S. was not informed about the operation beforehand, and President Joe Biden only learned of the airstrike once Israeli aircraft were already en route. The administration's response highlights the delicate balance the U.S. seeks to maintain in its support for Israel amid ongoing regional tensions.