On the 27th local time, Israel attacked Hezbollah's headquarters in Lebanon. In response, US Defense Secretary Austin said that the US had no prior knowledge. He only learned about the incident during a conversation with Israeli Defense Secretary Gallant. The Israeli military operation was already underway at the time. The White House said on the 27th that President Joe Biden has instructed the US Department of Defense to assess the relevant situation and adjust the US military posture in the Middle East if necessary.

On the 27th local time, Israel attacked Hezbollah's headquarters in Lebanon. In response, US Defense Secretary Austin said that the US had no prior knowledge. He only learned about the incident during a conversation with Israeli Defense Secretary Gallant. The Israeli military operation was already underway at the time. The White House said on the 27th that President Joe Biden has instructed the US Department of Defense to assess the relevant situation and adjust the US military posture in the Middle East if necessary.