But in the end it was more successful to just trade with Nazi Germany, buy stolen Jewish gold and stolen gold from occupied countries, send back Jews to be killed, deliver raw material for arms and sell weapons to the Nazis to not be invaded.
[Edit] Sorry, thought this was well known.
* NYT / "The (Not So) Neutrals of World War II"
> https://archive.is/kogL7#selection-275.0-275.37
* "For reasons that are still uncertain, Hitler never ordered the invasion. One theory is that a neutral Switzerland would have been useful to hide Nazi gold and to serve as a refuge for war criminals in case of defeat"
> https://en.wikipedia.org/wiki/Operation_Tannenbaum
* "In 1998, a Swiss commission estimated that the Swiss National Bank held $440 million (equivalent to $8.5 billion in 2024) of Nazi gold, over half of which is believed to have been looted."
> https://en.wikipedia.org/wiki/Nazi_gold
* "Switzerland laundered hundreds of millions of dollars in stolen assets, including gold taken from the central banks of German-occupied Europe"
> https://en.wikipedia.org/wiki/Business_collaboration_with_Na...
* "The Boat Is Full"
> https://en.wikipedia.org/wiki/The_Boat_Is_Full
* "Seven studies released on Friday by the Independent Commission of Experts (ICE) show that the lion’s share of Swiss munitions exports went to the Axis powers."
> https://www.swissinfo.ch/eng/banking-fintech/swiss-supplied-...
* "The studies found evidence that the Swiss authorities only superficially inspected goods traffic transiting through Switzerland allowing the Nazis to transfer essential products, possibly even war material, from Germany to Italy and north Africa."
> https://www.swissinfo.ch/eng/banking-fintech/wartime-probe-r...