World War II was a global conflict that lasted from 1939 to 1945, involving many of the world's nations, including the major powers divided into two opposing military alliances: the Allies and the Axis. The war resulted in significant political, social, and economic changes worldwide, including the emergence of the United States and the Soviet Union as superpowers and a reevaluation of international relations, which deeply influenced the historical development of Texas government and policy in the latter half of the 20th century.