The front of the mountain war between 1915 and 1917 ran from the pass of Stilfser Joch on the Swiss border, over the Ortler and the Adamello mountains to the northern shores of Lake Garda. It continued east of the Etsch then ran over the Pasubio and on to the Sette Comuni. From there the Italian Isonzo armies threatened Austria-Hungary in the rear, which is why it can be described as a two-front war.