GAZA CITY, Palestine / ISTANBUL More than 6,000 civilians were displaced by Israeli airstrikes on Gaza City on Saturday, as Tel Aviv pressed ahead with an offensive to occupy the city, Gaza’s Civil Defense said. “More than 6,000 civilians have been left homeless after their homes were targeted today,” spokesperson Mahmoud Basal said in a statement. The Isralei army escalated bombardment of Gaza City since early Saturday, targeting homes, residential towers and three schools belonging to the UN