While Israel fervently attempts to terrorize the Palestinians into submission in Gaza, many observers have started to wonder why Hizballah has refrained from stepping in militarily to assist its brothers-in-arms, Hamas. Such musings fail to take account of the constraints on Hizballah’s room for action, as well as the circumstances under which Hizballah would ignore such constraints. The question that should be posed is not so much if Hizballah will act, but when.