Two years ago, Gaza’s largest city was sprawling with life. Classrooms brimmed with schoolchildren, markets were full of shoppers and beachside cafes offered respite for those escaping the stresses of a besieged enclave.

"Soon the gates of hell will open upon the heads of Hamas murderers and rapists in Gaza—until they agree to Israel's conditions for ending the war, foremost among them the release of all hostages and the dismantling of their weapons," Katz said in his post, which was originally in Hebrew.