Joint Chiefs of Staff head Charles Q. Brown warned on Monday that the US may not be able to help defend Israel against an all-out war with Hezbollah in the same way that it stepped in during the Iran drone attack in April.

Brown, a US Air Force general, also said that Iran “would be more inclined to support Hezbollah.” While the Islamic Republic supports Hamas, General Brown said that Tehran would stand more firmly behind Hezbollah, “particularly if they felt that Hezbollah was being significantly threatened.”