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The United Kingdom (UK) was a group of countries in Europe before the Great War.


The United Kingdom was formed in 1801 with the Act of Union between the Kingdoms of Great Britain and Ireland; Great Britain itself being formed in 1707 with a similar act of Union between the Kingdom of Scotland and the Kingdom of England (incorporating Wales).[1]

From 1775 to 1783, the United Kingdom fought the newly formed United States, made up of thirteen of its North American colonies. The colonies won the war, leading to their independence from the British Empire. The United Kingdom also fought on the side of the Allied Powers during World War II, as one of the four leading countries of the alliance.

The UK also controlled many overseas territories, and at its peak led the largest empire in human history. Due to the divergence, the status of the empire, the Commonwealth of Nations, and the overseas territories is a mystery. As of 1945, such areas included Canada, parts of China, and what became Israel.

The relationship between the United Kingdom and the Irish state are unknown, since Ireland did not officially declare itself a republic or leave the Commonwealth of Nations until 1949. It is likely, however, that these events still transpired as this was shortly after or before the divergence. The capital city of Wales is also unknown; while it is Cardiff in our world, Cardiff did not become the Welsh capital until 1955.

Mini-JSPnP LogoThe following is based on J.E. Sawyer's Fallout RPG and has not been confirmed by canon sources.

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

Mini-JSPnP LogoEnd of information based on J.E. Sawyer's Fallout RPG.

Dialogue suggests that the country was ruled by a queen before the outbreak of the Great War.[2]

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, hinting at some of the possible conditions in post-War Britain. The ancestors of Colin Moriarty also left Ireland for the Capital Wasteland shortly after the Great War for unknown reasons.

The UK in FalloutEdit

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


Mini-FOT LogoThe following is based on Fallout Tactics and some details might contradict canon.
  • In Fallout Tactics, Sharon's family is claimed to stretch back to the English county of Essex. In addition, one of Martin's ancestors once ran a software company in England that ended up going out of business.
Mini-FOT LogoEnd of information based on Fallout Tactics.




While there are several characters of Irish descent in the Fallout series, no information is given as to whether they originate from Northern Ireland or the Republic.

  • The Lone Wanderer's father James in Fallout 3 speaks with a slight Irish accent.
  • Colin Moriarty speaks with an Irish accent. He claims he has lived in the United States for most of his life but does not specifically state where he came from.
  • Cait speaks with an Irish accent.
  • In Fallout 4, there are two companions of Irish descent: John Hancock (real surname McDonough) and Cait. This is not surprising considering the rich Irish heritage and culture of Boston.
  • The Eddie Winter holotapes reference Irish gangs operating in the Boston area.
  • Irish Pride Industries shipyard is a direct reference to Ireland.
  • The Four Leaf Clover perk icon and Shamrock Taphouse logo contain the Irish flag.
  • Whiskey bottles in Fallout 4 are marked as Irish whiskey and have the word "whiskey" written in Irish Gaelic.


Mini-FOT LogoThe following is based on Fallout Tactics and some details might contradict canon.
  • 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 a lot of information about the UK, as the weapon was developed and issued in the mid-1980s and is past the point of Divergence. Furthermore, the LSW was influenced by the FN-FAL, which was created in the 1950s.
Mini-FOT LogoEnd of information based on Fallout Tactics.
Gametitle-VBThe following is based on Van Buren and has not been confirmed by canon sources.
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  • 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 retained its real flag prior to the Great War.

Known locationsEdit



The United Kingdom or nations within it are mentioned or referenced in Fallout, Fallout 2, Fallout 3 and its add-on Point Lookout, Fallout: New Vegas and its add-ons Dead Money, Honest Hearts, and Old World Blues, Fallout 4, Fallout Tactics, and Van Buren. The United Kingdom was also to appear in the hypothetical Fallout: Resource Wars.

Behind the scenesEdit

  • "Allistair Tenpenny came to the Capital Wasteland from Great Britain to seek his fortune, so that alone tells you that the U.K. was also hit in the war. And if he came to U.S. to succeed, that says a lot about how screwed up Europe must be. So we just allude, a little bit, to the state of the rest of the world. We like to leave a lot to the players' imaginations, and somebody like Tenpenny serves as a catalyst for those thoughts." – Emil Pagliarulo[7]
  • James, the Lone Wanderer's father, speaks with an Irish accent because he is played by the Irish actor Liam Neeson.


  1. Tomkins and Turpin, British Government and the Constitution, 4th edition, Chapter 1
  2. Mister Handy dialogue
  3. The Courier's brain's dialogue: "A British tar is a soaring soul, as free as a mountain bird..."
  4. Fallout 3 loading screens
  5. H&H Tools Factory terminal entries - E-Mail from Jenny DeSoto
  6. H&H Tools Factory terminal entries - E-mail from Jenny DeSoto 2
  7. Fallout 3 Afterthoughts