The war in Gaza brought home this truth to Israel. More than two years of battle destroyed much of the infrastructure that Hamas built and killed many of its fighters, at the cost of mass civilian casualties and injuries along with the widespread destruction of apartments, hospitals and schools. But after the most recent cease-fire took hold last October, Hamas emerged from its tunnels and quickly exerted political control over Gaza’s demoralized civilians and restless tribal leaders. Its fighters refuse to disarm, exposing the terms of the cease-fire agreement as a sham. Some far-right Israeli leaders are demanding a renewed war to finish the job, a move the U.S. wouldn’t tolerate. Israel’s Gaza campaign was a military success but a political failure.