History of Switzerland
Switzerland's most important exports during the war were precision machine tools, watches, jewel bearings (used in bombsights), electricity, and dairy products. During World War Two, the Swiss franc was the only remaining major freely convertible currency in the world, and both the Allies and the Germans sold large amounts of gold to the Swiss National Bank. Between 1940 and 1945, the German Reichsbank sold 1.3 billion francs worth of gold to Swiss Banks in exchange for Swiss francs and other foreign currency.
Economy of Switzerland
Swiss neutrality and national sovereignty, long recognized by foreign nations, have fostered a stable environment in which the banking sector was able to develop and thrive. Switzerland has maintained neutrality through both World Wars, is not a member of the European Union, and was not even a member of the United Nations until 2002. Currently an estimated 28 percent of all funds held outside the country of origin (sometimes called "offshore" funds) are kept in Switzerland. In 2009 Swiss banks managed 5.4 trillion Swiss Francs.