A town in Germany (D for "Deutschland"), Austria (A) or Switzerland (CH). Seems that term isn't common in English. https://de.wikipedia.org/wiki/D-A-CH https:

A town in Germany (D for "Deutschland"), Austria (A) or Switzerland (CH). Seems that term isn't common in English. https://de.wikipedia.org/wiki/D-A-CH https://de.wikipedia.org/wiki/D-A-CH https://www.statista.com/topics/4623/dach-countries/#dossierContents__outerWrapper https://www.statista.com/topics/4623/dach-countries/#dossier...