What happens next could decide the fate of the whole world. After more than nine months of desperate fighting against Hamas, Israel may now be on the brink of total cataclysm. Military action against Hezbollah, Iran 's largest and best-trained proxy group, in neighbouring Lebanon, could bring war on a totally different scale, a war which Israel is far from certain to win. It is a war that might easily involve Britain - not only in supplying arms and air cover for Israel, but potentially hurling this country into armed conflict with Hezbollah. Such a war would inevitably have a seismic effect on our domestic politics, already riven by pro-Palestinian protests.
