Israel has been holding its fire since Oslo (1993). It withdrew from Lebanon in 2000 and from Gaza in 2005. Alas, this did nothing to quiet hatred of Israel. In fact, by showing weakness (which as Reagan taught, is provocative) Israel invited aggression. This is a rare moment in which Israel can push back against Hezbollah without U.S. pressure to desist. Yes, the casualties of civilians on both sides are heartbreaking. But if this moment is squandered, the results for Israel, and I believe for our larger war on terror, will be serious.