(FILES) In this file photo taken on January 29, 2015, Israeli Army's Chief of Staff, General Benny Gantz salutes at the grave of late Israeli prime minister Ariel Sharon during a state memorial ceremony at the family's Sycamore ranch, near the Israeli city of Sderot in the southern Negev desert. - Israel's Defence Minister Benny Gantz, a former army chief, has put his security credentials at the centre of his latest attempt to become prime minister. (Photo by Gil COHEN-MAGEN / AFP)