Iran’s ballistic missile strikes on Israel on October 1 have raised fears of an all-out war in the Middle East. The deepening spiral of bloodshed began on September 17 and 18 with the detonation across Lebanon of thousands of pagers and two-way radios used by Hezbollah operatives—one analyst deemed the unprecedented Israeli operation “the most extensive physical supply chain attack in history.” Ongoing airstrikes in Beirut and southern Lebanon have marked the most significant Israeli barrage in...