> Switzerland is a small, neutral country without a serious army. They would hardly refuse to hand the gold back on request. This guy is suggesting that Germany could invade Switzerland if they refuse to give back their gold, so this is a good reason to keep it there. I'm pretty sure such action would be illegal under UN rules, ie: you can't invade a country because they don't give you back your posession. And Switze…
So?
Since when would that make a difference to anyone?
The concept of UN "laws" or "illegal" just makes me laugh. The UN has treaties - countries agreeing to limits on their own behavior. The UN is not a government, and does not enforce any law.
So yes, you can just invade a country because they don't give you back your possession. Other countries might get mad at you, but the UN is quite irrelevant.