This article originally appeared in the Atlantic Council’s MENASource on March 12, 2021. Tensions between Lebanese militant group Hezbollah and Israel have elevated since the July 20, 2020 Israeli airstrike on Damascus that killed the group’s fighter Ali Kamel Mohsen. Hezbollah should have avenged Mohsen by now and its continued failure to do so is creating a growing “deterrence deficit” vis-à-vis Israel. Hezbollah will likely use armed force to bridge this gap when more opportune conditions arise in Lebanon. Until then, the group is using propaganda to maintain the impression that its…