JERUSALEM — Israel has been preparing for its next war against Hezbollah for nearly a decade, and a full-scale conflict has seemed increasingly inevitable with each passing month since Oct. 7. Now, with Hamas diminished in Gaza,

A barrage of Israeli strikes since Monday has killed at least 558 people in Lebanon, and raised fears of a devastating all-out war.

Israel is bombing targets across many parts of Lebanon, striking senior militants in Beirut and apparently hiding bombs in pagers and walkie-talkies. Hezbollah is firing rockets and drones deep into northern Israel,