Vichy (Occitan: Vichèi) is a city in the Allier department of Auvergne-Rhône-Alpes in central France, in the historic province of Bourbonnais. It is a spa and resort town and in World War II was the seat of government of Vichy France from 1940 to 1944. The term Vichyste indicated collaboration with the Vichy regime, often carrying a pejorative connotation.
Read more on wikipedia