Israel's military pushed deeper towards the most populated areas of Gaza City on Tuesday, a painful reminder for Gazans that Western powers' recognition of a Palestinian state does not mean an end to the horrors of war as tanks approach. Israel pressed on with its Gaza offensive a day after dozens of world leaders gathered at the United Nations to embrace a Palestinian state, a landmark diplomatic shift after nearly two years of war that faces fierce resistance from Israel and its close ally the United States. Medics said at least four people had been killed in an Israeli airstrike on a residential building in Gaza City, which Israel has advised civilians to leave for southern Gaza as its tanks...