France–Switzerland relations
bilateral relations between Switzerland and France

Diplomatic relations between France and Switzerland have traditionally been close, through important economic and cultural exchanges. Switzerland and France (which is part of the European Union), share about 600 km of border (prompting strong cross-border cooperation) and a language (French is one of Switzerland's four official languages).
French-Swiss relations date back to the Middle Ages, when the Kingdom of France and the Old Swiss Confederacy established close contacts. The good neighborly relations ended when revolutionary France invaded Switzerland and established the Helvetic Republic in 1798. Switzerland remained a French vassal state until 1813. At the Congress of Vienna, Switzerland was granted small areas of French territory as compensation and Swiss independence was restored. After that, France respected Swiss neutrality and relations remained peaceful. In the early 21st century, both countries maintain friendly relations. France is a full member of the European Union and NATO, while Switzerland is not.
History
Old history
Conflicts between the Old Swiss Confederacy first arose in the 13th century during the Hundred Years' War, when French mercenaries who had lost their jobs during breaks in fighting invaded north-western Switzerland.
The public source identifies “France–Switzerland relations” as bilateral relations between Switzerland and France. This brief keeps that definition visible, then builds a research path around France, Switzerland and relations.
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This entry incorporates text from “France–Switzerland relations” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.