Great Britain

The United Kingdom, officially the United Kingdom of Great Britain and Northern Ireland or simply Britain, was a country located in Europe before the Great War.

Background
The United Kingdom was formed in 1801 with the Act of Union between the Kingdom of Great Britain and the Kingdom of Ireland; the Kingdom of Great Britain itself being formed in 1707 with a similar act of Union between the Kingdom of England and the Kingdom of Scotland (Wales at the time being considered part of England). The United Kingdom of Great Britain and Northern Ireland, the latest incarnation of a British state, was formed after the Irish War of Independence, resulting in a part of Ireland referred to as Northern Ireland remaining with the United Kingdom, and the other becoming an independent Irish country.

From 1775 to 1783, the Kingdom of Great Britain fought the newly formed United States, made up of thirteen of its North American colonies. The American rebels won the war, leading to their independence and establishment as a sovereign country. The United Kingdom also fought on the side of the Allies during World War II, as one of the four leading countries of the alliance.

The United Kingdom controlled many overseas territories, and at its peak led the largest empire in human history. Due to the divergence, the status of the British Empire and the Commonwealth of Nations is unknown. As of 1945, such areas included Canada, parts of the Europe and would become the nation of Israel.

The relationship between the United Kingdom and Ireland in the Fallout universe is unclear, since Ireland did not officially declare itself a republic or leave the Commonwealth of Nations until 1949. It is likely that these events still transpired, considering that the national flag of Ireland is found multiple times in the Commonwealth. This flag, while created in 1830, did not enter common usage until Ireland became a republic in 1949 and the flag was adopted as the national flag of Ireland. The capital city of Wales is also unknown, as Cardiff serves as the capital in the real world, the city did not become the Welsh capital until 1955.

Dialogue suggests that the country was ruled by a queen before the outbreak of the Great War.

No details are known about the state of the British Isles after the Great War. However, in the 23rd century, Allistair Tenpenny left the country for the Capital Wasteland in the United States to seek wealth and fortune, possibly hinting at some of the possible conditions in the post-War United Kingdom.

The United Kingdom was a member of the European Commonwealth until its dissolution in 2060. The United Kingdom quarreled with other former members of the Commonwealth over the last remaining quantities of oil on Earth, sparking a bloody conflict known as the European Civil War.

The United Kingdom in Fallout
There are several references to the United Kingdom in published Fallout games:

England

 * Mister Handy and Mister Orderly models speak with posh English accents.

Fallout

 * Loxley speaks with an English accent and knows of English folktales such as Robin Hood, but he learned this from holotapes and is not English himself.
 * Patrick the Celt claims to be a decedent of the Celtic people, a prehistoric group who lived in parts of Europe, with a large presence on the British Isles.

Fallout 3

 * Allistair Tenpenny traveled to the Capital Wasteland from England to seek his fortune.
 * A copy of the Magna Carta, an important document that was written in England in the year 1215, can be found in the National Archives.
 * Music by Sid Phillips is played on Galaxy News Radio.

Point Lookout

 * Desmond Lockheart was a high-ranking agent working for the British government.
 * Captain John Smith was an English explorer who was the first European to discover Point Lookout in 1612. In addition, two English settler ships, the Ark and Dove, landed near Point Lookout in 1634, and began the process of the founding of Maryland.

Fallout: New Vegas

 * Music by Bert Weedon is played on Mojave Music Radio and Radio New Vegas.
 * The song Jazz Club Blues by Harry Bluestone is played.

Dead Money
Dean Domino speaks using a southeastern British accent.

Old World Blues

 * The Sink Central Intelligence Unit and Sink both speak in posh English voices.
 * The Courier's brain recites a line from a musical number from H.M.S. Pinafore, a British comic opera made in Victorian times.

Fallout 4

 * Whitechapel Charlie, who has a cockney accent, is named after the London district which was notorious for crime in the 19th century, particularly the infamous Jack the Ripper murders.
 * Both Proctor Quinlan and Colter speak with English accents.

Far Harbor
A fisherman in Far Harbor, Kye, claims his family hails from Yorkshire, a group of four counties in northern England. He also speaks with an accent.

Nuka-World
A plaque at Wixon's shovel museum mentions British soldiers (albeit in a fictionalized manner) during the American Revolutionary War.

Fallout 76
A holotape recorded by a coffin salesman from the English town of Ipswich can be found in the workout room of the Green Country Lodge.

Wild Appalachia

 * The Rosetta Stone, which has been kept in the British Museum in London since 1802, is mentioned in the Pioneer Scout archaeology exam.
 * Queen Victoria and Geoffrey Chaucer, two English historical figures, are also mentioned.

Fallout Tactics

 * Sharon's family is claimed to stretch back to the English county of Essex.
 * One of Martin's ancestors once ran a software company in England that ended up going out of business.

Scotland

 * In Fallout, MacRae, a Scotsman, appears as an Unarmed combat trainer for the Blades.
 * Scotch is a type of whisky that originates from Scotland.
 * Music by Billy Munn is played on Galaxy News Radio in Fallout 3.
 * In Fallout: New Vegas, the Loch Ness Monster, the famous Scottish mythical creature, is referenced in two emails from Jenny DeSoto in the H&H Tools Factory.

Wales

 * In Fallout 4, the Brotherhood of Steel sail aboard The Prydwen, an armored airship that arrives in the Commonwealth from the Capital Wasteland. Prydwen is the name of King Arthur's ship used to sail to Ireland in Preiddeu Annwfn, a famous Welch poem.

Ireland
There are several characters of Irish descent from the island of Ireland in the Fallout series. It is never explicitly stated whether Ireland is part of the United Kingdom in the games' timeline, or even if Northern Ireland exists, but in the Commonwealth, there is an abundance of Irish republican flags, which did not become popularly used until 1922 after Ireland broke away from the United Kingdom, indicating it was a separate nation. However, it is possible that Northern Ireland, part of the United Kingdom in the real world, may be the place of origin for characters with vaguer ties (such as last names and generic Irish accents).

Other

 * The American Revolutionary War, and several key British figures who were active during that timeframe such as King George III, and Thomas Gage, are referenced in Fallout 3 and Fallout 4.
 * In Fallout 4, a Mr. Handy called Whitechapel Charlie, has a small Union Flag on his chassis. This suggests that, unlike the United States, the United Kingdom had such a flag prior to the Great War.
 * In the Fallout 76 add-on Wild Appalachia, the United Kingdom is listed as the correct answer to the question, "Which country was the first to build a major railway system?" in an exam at the Pioneer Scout camp.
 * Some examples of British military equipment exist in the Fallout universe. Weapons such as the Sten gun and the light support weapon were developed by Royal Small Arms Factory.
 * The light support weapon (LSW) being featured in the Fallout universe may give some information about the United Kingdom, as the weapon was developed and issued in the mid-1980s and is past the point of Divergence.
 * A British Boudicca-78/S motorcycle was to be the first vehicle found for use in Van Buren.

England

 * London (mentioned in Fallout)
 * Essex (mentioned in Fallout Tactics)
 * Yorkshire (mentioned in Far Harbor)
 * Ipswich (mentioned in Fallout 76)

Appearances
The United Kingdom or nations within it are mentioned or referenced in Fallout, Fallout 2, Fallout Tactics, Van Buren, Fallout 3 and its add-on Point Lookout. It is also mentioned in Fallout: New Vegas and its add-ons Dead Money, Honest Hearts, and Old World Blues as well as Fallout 4, Fallout 76 and its add-on Wild Appalachia. It would have been mentioned in the Fallout Pen and Paper d20 intro, before the game was changed to Exodus.

Behind the scenes

 * Joshua Sawyer has expressed a desire to make a game called Fallout: Resource Wars, which would be set in the Fallout universe, involving members of the British Armed Forces.
 * Joshua Sawyer has expressed a desire to make a game called Fallout: Resource Wars, which would be set in the Fallout universe, involving members of the British Armed Forces.