The Nazis had every secret fortification, every hidden bunker, everything mapped out, they were just leaving them for later. Probably wouldn’t have come to that Switzerland would’ve done a San Marino, which almost holds the record as the only country to ever elect and de-elect fascists, and elect and de-elect Bolsheviks. “Almost” because the fascists went AWOL upon Mussolini’s death, before they could be voted out.