The drums of war are pounding on the doorstep of Gaza City. Residents of the largest city in northern Gaza, packed with locals and refugees, fear the hours are ticking down before a looming Israeli offensive.

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.

Israel will send call-ups to 50,000 to 60,000 reservists as part of its plans to occupy Gaza City, according to an Israeli military official.