The winter of 1917, the North-East front, the final clashes of the Great War. An Italian stronghold situated at 1800 metres above sea level, on the Asiago plateau, described in the novels of Mario Rigoni Stern. It’s snowing everywhere; the Austrian trenches are so close that you can hear the enemy soldiers breathing.                                                                            　　A hundred years since the outbreak of World War I, maestro Er...