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World War II, also referred to as the Second World War and regularly shortened to WW2 or WWII, is an event mentioned throughout the Fallout series.



  • Images depicting events leading up to and in World War II appear in the Fallout and Fallout Tactics intro.[3]
  • The 9mm Sten Gun is mentioned as having been developed by the British during the war.[4]
  • The .303 Cal Bren is mentioned as being effective in World War II, remaining in service with British forces for almost 50 years.[5]

Fallout 3

  • In the Museum of History, there is an inaccessible World War II exhibit, the archway reading "1941-1945 American Military Might of World War II."[6]
  • Abraham Washington is in possession of the United States' 1941 declaration of war against Germany.[1]
  • The atomic bombing of Hiroshima and Nagasaki is mentioned.[2][7]
  • The sinking of the USS Ebon Atoll was described as "one of the most tragic disasters in U.S. Naval History since World War II."[8]
  • An exhibit at the Museum of Technology displayed World War II fight medals awarded to pilots, including the Medal of Honor, Distinguished Service Cross, Silver Star, Distinguished Flying Cross, Navy Cross, Air Medal, Bronze Star, and the Purple Heart.[9]

Fallout 4

Behind the scenes

  • According to the Fallout Bible, the timelines of the real world and Fallout world diverged after World War II.[Doc 1] This was also mentioned in a in a Bethesda Softworks lawsuit document.[Ext 1]
  • Several real World War II images are shown during the Fallout intro.



  1. 1.0 1.1 Rivet City terminal entries; Welcome to the Capital Preservation Society, U.S. Declaration of War on Germany
  2. 2.0 2.1 2.2 Fallout 4 intro: "In the year 1945, my great great grandfather, serving in the army, wondered when he'd get to go home to his wife and the son he'd never seen. He got his wish when the US ended World War II by dropping atomic bombs on Hiroshima and Nagasaki."
  3. Fallout Tactics intro: "...the first atomic bomb was dropped on Hiroshima..."
  4. Fallout Tactics item description: "desc_stenGunSub = {The 9mm Sten Gun was developed by the British during WW2 as a cheap alternative to the more expensive Thompson SMG offered the U.S."
  5. Fallout Tactics item description: "desc_brenGunHeavy = {This British adaptation of a Czech design was adopted as the standard light machine gun of British and Commonwealth forces in 1938. The .303 Cal Bren was among the most liked and respected weapons available to the British in WW2, due to its exceptional ruggedness, accuracy and simplicity, and remained in service with British forces for almost 50 years}"
  6. Museum of History arch
  7. Citadel terminal entries; Liberty Prime operation, Historical records, Project summary
  8. Fallout 3 message box transcriptions; U.S.S. Ebon Atoll's flag
  9. Fallout 3 message box transcriptions; World War II fight medals
Design Documents External
  1. Bethesda Softworks v Behaviour Interactive: "... The FALLOUT franchise of video games draws gamers into alternate history, diverging from existing reality shortly following WWII. ..."