This week’s attacks were not, as Israel’s defenders claimed, “surgical” or a “precisely targeted anti-terrorist operation”. Israel and Hezbollah are sworn enemies. The current round of fighting has seen tens of thousands of Israelis displaced from the Israel-Lebanon border because of the Shia militant group’s rocket and artillery attacks.

However, the pager bombs were clearly intended to target individual civilians – diplomats and politicians – who were not directly participating in hostilities. The plan appeared to produce what lawyers might call “excessive incidental civilian harm”. Both these arguments have been levelled at Russia to claim Moscow was committing war crimes in Ukraine. It’s hard to say why the same reasoning is not applied to Israel – apart from that it is a western ally.

Such disproportionate attacks, which seem illegal, are not only unprecedented but may also become normalised. If that is the case, the door is opened for other states to lethally test the laws of war. The US should step in and restrain its friend, but Joe Biden shows no sign of intervening to stop the bloodshed. The road to peace runs through Gaza, but Mr Biden’s ceasefire plan – and the release of hostages – has not found favour with either Israel’s prime minister, Benjamin Netanyahu, or Hamas.