Germany was freeriding on Ukraine's blood to get cheap energy ;)
Eurozone allows Germany to freeride as well. Germany makes use of relatively cheap euro, while other countries, who do drag down euro, can't access benefits of crappy state of their economy. And Germany's strong Russian-gas-powered economy keeps euro higher than it should be. Although now it's getting corrected.
Switzerland is a little bit of a special case in many regards.
Eurozone allows Germany to freeride as well. Germany makes use of relatively cheap euro, while other countries, who do drag down euro, can't access benefits of crappy state of their economy. And Germany's strong Russian-gas-powered economy keeps euro higher than it should be. Although now it's getting corrected.
Switzerland is a little bit of a special case in many regards.