Charles Krauthammer cuts through the hand wringing and lays into the "proportional response" crowd who not only have a problem with enemy identification but also demonstrate the moral sense of an ocelot:

At war today in Gaza, one combatant is committed to causing the most civilian pain and suffering on both sides. The other combatant is committed to saving as many lives as possible -- also on both sides. It's a recurring theme. Israel gave similar warnings to Southern Lebanese villagers before attacking Hezbollah in the Lebanon war of 2006. The Israelis did this knowing it would lose for them the element of surprise and cost the lives of their own soldiers.

That is the asymmetry of means between Hamas and Israel. But there is equal clarity regarding the asymmetry of ends. Israel has but a single objective in Gaza -- peace: the calm, open, normal relations it offered Gaza when it withdrew in 2005. Doing something never done by the Turkish, British, Egyptian and Jordanian rulers of Palestine, the Israelis gave the Palestinians their first sovereign territory ever in Gaza.

What ensued? This is not ancient history. Did the Palestinians begin building the state that is supposedly their great national aim? No. No roads, no industry, no courts, no civil society at all. The flourishing greenhouses that Israel left behind for the Palestinians were destroyed and abandoned. Instead, Gaza's Iranian-sponsored rulers have devoted all their resources to turning it into a terror base -- importing weapons, training terrorists, building tunnels with which to kidnap Israelis on the other side. And of course firing rockets unceasingly.

Krauthammer rightly highlights the clear moral choice in supporting Israel:

The grievance? It cannot be occupation, military control or settlers. They were all removed in September 2005. There's only one grievance and Hamas is open about it. Israel's very existence.

Nor does Hamas conceal its strategy. Provoke conflict. Wait for the inevitable civilian casualties. Bring down the world's opprobrium on Israel. Force it into an untenable cease-fire -- exactly as happened in Lebanon. Then, as in Lebanon, rearm, rebuild and mobilize for the next round. Perpetual war. Since its raison d'etre is the eradication of Israel, there are only two possible outcomes: the defeat of Hamas or the extinction of Israel.

The opponents of Israel in this conflict never get around to mentioning these facts. To do so would destroy their dishonest narrative that Israel is bombing Hamas to kill civilians and "punish" the terrorists for their pinpricks with overwhelming force. They believe that Israelis should live with the constant threat of sudden death from their enemies and not continue the "cycle of violence" - ignoring just who it is that is perpetrating the violence.

It is all very sophisticated and nuanced - and morally repugnant. Krauthammer reminds us just who is in the right and who is wrong in this conflict.