The Hamas assault on Israeli communities in south west Israel changed the Middle East strategic picture with a single stroke. Until October 7, 2023, the general trend in the region had appeared to be moving toward a certain uneasy stability. The unrest of the 2010-19 period, mistakenly initially termed the ‘Arab Spring’, had begun to recede. Its main outcome had been the fragmentation and partial collapse of governance in a number of Arab states—Yemen, Iraq and Syria most important among them. But the emergence of dangerous non-state actors, the Islamic State organisation and others, appeared to have been largely curtailed.