I agree with Kim, that preparedness is the only sane course of action in a dangerous world. It's fine to quote Einstein to reinforce a point, but I too think he was wrong on that topic.

[It's interesting how some of the most well-known quotes out there just don't stand up to close scrutiny. From FDR's "the only thing we have to fear is fear itself", to JFK's "Ask not what your country can do for you...", to Einstein's quote above. These were all rhetorical triumphs that obscured the faulty logic underlying them, in my opinion.]

However, let's not be naive about Switzerland. Their biggest defense is their neutrality, and the fact that they provide such a useful service to the rest of the world by being neutral. They would not, by themselves, be able to withstand a serious attack by one of the big powers. The USA cannot realistically adopt Switzerland's approach.