When Gilad Erdan, the Israeli envoy to the UN, sat before the security council to rail against the ceasefire resolution it had just passed, he cut a lonelier figure than ever in the cavernous chamber. The US, Israel’s constant shield at the UN until this point, had declined to use its veto, allowing the council’s demand for an immediate truce – even though it contained, as Erdan furiously pointed out, no condemnation of the Hamas massacre of Israelis that had begun the war. That had been a red line for the US until Monday, as had making a ceasefire conditional...