For those who don't regularly read Steve Walt's blog--everyone should--I'll take the liberty of reposting part of his comment today on the ongoing Israeli attack on Gaza:
First, the similarities to Operation Cast Lead (the Israeli assault on Gaza in 2008-09) are of course obvious. In both cases, the attacks occurred shortly after a U.S. presidential election. In both cases, a period of rough truce was initially broken by Israel, triggering a Palestinian response, and then leading to an overwhelming Israeli counterattack justified by the need to "restore deterrence." In both cases there doesn't appear to be a clear Israeli strategy, in the sense of any justifiable political objectives.
Given these similarities, a good place to start weighing the moral dimensions here is Jerome Slater's recent article "Just War Philosophy and the 2008-09 War in Gaza," published in the Fall 2012 issue of International Security. Slater is distinguished research professor emeritus at SUNY-Buffalo, and an insightful commentator on Middle East affairs. His analysis of Cast Lead is sober but damning, and it applies with equal force to the events we are now witnessing.