Denmark

Denmark, officially the Kingdom of Denmark, was a country in northern Europe before the Great War.

Background
The Chop Shop mechanic in New Reno mentions a "Danish," a traditional pastry from the Denmark. Greenland, an autonomous territory under the Danish constitution, is mentioned in a Fallout 3 loading screen and Fallout 4.

The Vikings, a group of seafaring people originating from Norway, Denmark, and Sweden, are mentioned in Fallout, Fallout 2, and Fallout 76.

Apperances
Denmark is mentioned only in Fallout 2.