Israel said Monday that Iran had launched missiles targeting it, hours after Israel launched airstrikes targeting central and western Iran in response to missile fire from Tehran. The exchange of strikes threatened to drag the wider Middle East back into a regional war.Sirens sounded in central Israel, and the government urged the public to seek shelter. Explosions could be heard in central Israel as Israeli air defenses sought to intercept the incoming Iranian fire. Iran did not immediately acknowledge the attack.Monday marked the 100th day of the Iran war, launched Feb. 28 when Israel and the United States killed Supreme Leader Ayatollah Ali Khamenei and other senior Iranian leaders. The war raged until reaching a nominal ceasefire on April 8, but a permanent end to the hostilities have been challenged by Iran's chokehold on the Strait of Hormuz, through which a fifth of all oil and natural gas traded once ...