Against orders , he positioned his Corps along the Isonzo river .
As Italy declared war on Austria - Hungary on 23 May 1915 , von Wurm and his XVI Corps were sent to stop the Italian advance .
Against orders , von Wurm positioned von Wurm XVI Corps Corps along the Isonzo river .
As Italy declared war on Austria - Hungary on 23 May 1915 , von Wurm and his XVI Corps were sent to stop the Italian advance .