The history of the Fallout world diverged
from ours shortly after World War II. In this world, the Cold War never ended, but just stopped being cold, and the United States
remained one of the major superpowers.
Prior to the Great War
, the United States had an intermediate level of government between the state and federal powers. In the early 21st century, the nation was divided into thirteen commonwealths. It was believed that such divisions would help create legislation broad enough to affect states with common concerns, but narrow enough to leave dissimilar states alone. In reality, it created even more strife, as commonwealths typically did everything they could to promote their own interests at the expense of other commonwealths. The United States flag was changed as well. The new flag depicted 13 stars in a circle and one in the middle.