United States of America (Instability Theorem)

The United States of America (USA), which was commonly known as the United States (U.S.) or America, was a federal republic composed of 50 states, a federal district, five major self-governing territories, and other various possessions. The United States was widely regarded as one of the world's main superpowers against the Soviet Union in the late 20th century and China in the early 21st century.

History (21st Century)
Further information: Second American Civil War

In 2030, following rising political tensions and an economic crisis, the Second American Civil War broke out, and though the separatist movements were crushed by the U.S Armed Forces, Air Force, and Navy, lead to government reforms and decreased states' rights.

Further information: Second American Revolution, United States of North America

It formally ceased to exist following the Second American Revolution and the founding of the United States of North America on October 11, 2038, also known as the United Federation of America or the American Union, a centralized federation consisting of ten commonwealths, each consisting of states similar to those found in the United States of America.