Why was Switzerland left unattacked during World War 2?
Switzerland has always been politically neutral and does not
take sides in foreign wars.
Actually Hitler did have plans in his drawer for the attack on
Switzerland. But Hitler's attitude towards attacking Switzerland
was "we'll pick up Switzerland on our way back." Also, Switzerland
warned the Germans that if they were to attack them, they will blow
up the railway connecting Italy and Germany, making it harder for
them to communicate. In exchange, Switzerland granted Germany the
right to enter and leave Switzerland without being questioned.