It is easy to forget which ruins are from which war as you wander about in the Julian Alps.  Many trails have beginnings in one of the World Wars or in the events preceding or suceeding.  Many mule tracks still hiked on built by either Italian or Austro-Hungarian military engineers.  Vršic Pass became a main road only during the First War. The cost of hundreds of Russian prisoners of war dying during in its construction by some ten thousand POWs. The Julians were set to become Italy’s new “natural borders” with the east.