Smoke rises from Rafah, in the southern Gaza Strip, after an Israeli air strike. (Hatem Omar, Maan Images)

So once again, Israel has opened the gates of hell to the Palestinians. Forty civilian refugees dead in a United Nations school, three more in another. Not bad for a night's work in Gaza by the army that believes in "purity of arms". But why should we be surprised?

Have we forgotten the 17,500 dead - almost all civilians, most of them children and women - in Israel's 1982 invasion of Lebanon; the 1,700 Palestinian civilian dead in the Sabra-Chatila massacre; the 1996 Qana massacre of 106 Lebanese civilian refugees, more than half of them children, at a UN base; the massacre of the Marwahin refugees who were ordered from their homes by the Israelis in 2006 then slaughtered by an Israeli helicopter crew; the 1,000 dead of that same 2006 bombardment and Lebanese invasion, almost all of them civilians?

What is amazing is that so many Western leaders, so many presidents and prime ministers and, I fear, so many editors and journalists, bought the old lie; that Israelis take such great care to avoid civilian casualties. "Israel makes every possible effort to avoid civilian casualties," yet another Israeli ambassador said only hours before the Gaza massacre. And every president and prime minister who repeated this mendacity as an excuse to avoid a ceasefire has the blood of last night's butchery on their hands. Had George Bush had the courage to demand an immediate ceasefire 48 hours earlier, those 40 civilians, the old and the women and children, would be alive.

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What happened was not just shameful. It was a disgrace. Would war crime be too strong a description? For that is what we would call this atrocity if it had been committed by Hamas. So a war crime, I'm afraid, it was. After covering so many mass murders by the armies of the Middle East - by Syrian troops, by Iraqi troops, by Iranian troops, by Israeli troops - I suppose cynicism should be my reaction. But Israel claims it is fighting our war against "international terror". The Israelis claim they are fighting in Gaza for us, for our Western ideals, for our security, for our safety, by our standards. And so we are also complicit in the savagery now being visited upon Gaza.

I've reported the excuses the Israeli army has served up in the past for these outrages. Since they may well be reheated in the coming hours, here are some of them: that the Palestinians killed their own refugees, that the Palestinians dug up bodies from cemeteries and planted them in the ruins, that ultimately the Palestinians are to blame because they supported an armed faction, or because armed Palestinians deliberately used the innocent refugees as cover.

And I write the following without the slightest doubt: we'll hear all these scandalous fabrications again. We'll have the Hamas-to-blame lie - heaven knows, there is enough to blame them for without adding this crime - and we may well have the bodies-from-the-cemetery lie and we'll almost certainly have the Hamas-was-in-the-UN-school lie and we will very definitely have the anti-Semitism lie.

To read the full article please visit The Independent