France

France, officially the French Republic, was a country in Europe before the Great War.

Background
During World War II, France was occupied by Nazi Germany in 1940. By 1944, France was liberated. In our world, France owned a large colonial empire which was mostly lost before the close of the 20th century. Due to the divergence, the status of the empire remains a mystery.

Considering that the Vietnam War occurred, it is likely that the republic still lost many of its colonial possessions.

France was a member of the European Commonwealth, and would have partook in the Resource Wars against the Middle East.

Not much is known about the state of France before or after the Great War; however, there are references to France throughout the Fallout series.

Fallout 2

 * A French wine named the Chateau Lafayette is mentioned.
 * The Golden Globes works on a film featuring a French exchange student.

Fallout 3

 * Daniel Littlehorn is described as having a penchant for French Traditionalist painters.
 * A French wine named the Chateau Montrose made in Bordeaux was mentioned, and was drank once by the U.S. president as of 2077.

Fallout: New Vegas

 * Phrases in the French language are used in areas throughout the game, such as "bon appetit" in the Ultra-Luxe, and a perk named "Cherchez La Femme."
 * Caesar mentions the historic European region of Gaul, which included the entirety of modern France.

Dead Money
Dean Domino mentions that he had performed in Paris.

Old World Blues
The Sink Central Intelligence Unit mentions an Atomic Claret, a traditional French wine.

Fallout 4

 * Curie's personality was partly modeled around that of Liza, a grad school fling of Kenneth Collins. She was from Versailles and moved to the United States before the Great War.
 * A terminal entry written by a member of the Brotherhood on the Prydwen mentions a chess move called 'the French Defense'.
 * Napoleon Bonaparte is referenced through a painting found throughout the Commonwealth.

Nuka-World
Napoleon is mentioned on a plaque in Wixon's shovel museum.

Fallout 76
The French city of Amiens is mentioned in the game's intro.

Wild Appalachia

 * The island of Tahiti, a part of French Polynesia, is referenced.
 * French historical figures are referenced in the Pioneer Scout exams.
 * Scout Leader Jaggy mentions the French language.

Fallout Tactics
The Cheyenne Mountain facility offers a French language countdown.

Fallout: Brotherhood of Steel
Dubois is of French descent.

Fallout: Resource Wars
The main characters would have had to fight their way from Italy to the English Channel by land. To do so, they would have had to have entered France at some point, since the United Kingdom and France are the only basin countries of the channel.

Known locations

 * Paris (mentioned in Dead Money)
 * Versailles (mentioned in Fallout 4)
 * Amiens (mentioned in Fallout 76)

Appearances
France is mentioned in Fallout 2, Fallout 3, Fallout: New Vegas and its add-on Dead Money, Fallout 4, in the Fallout 76 Wild Appalachia update, in Fallout Tactics and Fallout: Brotherhood of Steel. It would have appeared in the hypothetical Fallout: Resource Wars.