Berchtesgaden the Obersalzberg. In order to serve as an outpost of the German "Reichskanzlei" (Imperial Chancellery), Berchtesgaden and its environs ("Stanggass") saw substantial expansion of offices, security, and support services, mainly on the Obersalzberg. Included in the town were a new railway station, with a reception area for Hitler and his guests, and an adjacent post office. The Berchtesgadener Hof Hotel, where famous visitors such as Neville Chamberlain and David Lloyd George stayed, was substantially upgraded. The "Kehlsteinhaus" (known as the "Eagle's Nest" among the Allies) atop the Kehlstein subpeak of the Hoher Goll was built as a present for Hitler's
Fortified Sector of the Sarre or Second Position, to the rear of the four western sub-sectors. A number of blockhouses were built under the auspices of the "Service Technique du Génie" (STG), but the line was incomplete in 1940, with long gaps between blockhouses. The "Région Fortifiée de la Sarre" ("Fortified Region of the Sarre") was briefly created, encompassing the SF Sarre and the neighboring Fortified Sector of Rohrbach. The region existed for two months, in September and October 1939. Several transfers took place of sub-sectors to and from the neighboring SF Rohrbach and SF Faulquemont. In particular, Ouvrage Haut-Poirier was attached to Rohrbach at