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.

Israel’s defense minister warned on Friday that Gaza City could be destroyed unless Hamas accepts Israel’s terms, as the country prepares for an expanded offensive in the area. A day after Prime Minister Benjamin Netanyahu said he would authorize the military to mount a major operation to seize Gaza City,