Israel’s intelligence community failed to focus on the intentions and preparations by the Islamist Hamas to launch the October 7th onslaught, which brought about the massacre of 1,400 mostly civilians. Nevertheless, it righty assessed that when any front in Israel’s half-dozen-or-so flares up, it will not stay isolated for long. Indeed, the Lebanese border almost immediately became an active front between the Iranian-proxy Hezbollah and the IDF, with an escalation increasingly probable and Iran possibly joining the war, too. Other attacks emanated from Syria and as far as Yemen. How is a multi-sector war different from a single-front one?