Switzerland is nothing but mountains; the last thing people want to do is fight in the mountains-- they don't have to look much further than how long the Spaniard-Inca wars lasted (almost a century and a half.) Plus the Fascists, as well as the Allies, placed ALL of their assets in the Swiss banks-- so it would be in their best interest to not bother.
Israel-- backed by United States's massive economy.
Try again. You keep citing examples, but the irony in those examples is that oftentimes the INVADERS also require THEIR citizens to be "armed to the tooth" as well.