Hi Indy and T.G.W. staff, best show ever made about world war one by far. We all know about the trenches but i would really be interested in knowing more about the defensive structures built and used during high mountain warfare, i'm thinking about italy and Austria asking this and the forts built on high mountain or the structures caved right inside the rocks of such mountain. I would be interested in details about the types, the use and the construction of these structures, even those who were actually never used during the war like the Chaberton artillery Battery between Italy and France, wich was a structure built at more than 3000 meters of altitude with 7 149mm cannons over it, just imagine what it means to build such a structure. thank you.