Turkish president Recep Tayyip Erdo?an urged Palestinians to unite amid Israel’s war in Gaza following hours-long talks with Hamas chief Ismail Haniyeh in Istanbul on Saturday, his office said. Erdo?an has failed to establish a foothold as a mediator in the Gaza conflict that has roiled the region, with the Hamas-run Palestinian territory bracing for a new Israeli offensive and a reported Israeli attack on Iran. Erdo?an said Palestinian unity was “vital” following the talks at the Dolmabahçe palace, which Turkish media reports said lasted more than two and a half hours. “The strongest response to Israel and the path...