http://www.stephenhalbrook.com/artic...ime-swiss.html

Although there is more per capita firepower in Switzerland than any place in the world, it is one of the safest places to be. To the delight of Americans who support the right to keep and bear arms, Switzerland is the proof in the pudding of the argument that guns don't cause crime.
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There may be various reasons why the Nazis did not invade Switzerland, but one of those reasons is that every Swiss man had a rifle at home. The Nazi invasion plans themselves state that, because of the Swiss gun ownership and shooting skills, that country would be difficult to conquer and occupy. The European countries occupied by the Nazis usually had strict gun controls before the war, and their registration lists facilitated confiscation of firearms and, in many cases, execution of their owners.


A long, but good read.