This category lists pages and sites about World War I. Also known as the Great War or the First World War, this war was waged from 1914-1918 between the Allies (Great Britain, France, Belgium, Russia, the United States, Italy, etc.) and the Central Powers (Germany, Austria-Hungary, etc.). The war formally ended in 1919 with the signing of the Treaty of Versailles.
This category lists pages and sites about World War II, the most devastating war in human history. World War II began in 1939 as a European conflict. It grew into global conflict, however, pitting the Axis powers of Germany, Italy, and Japan against the Allied powers which included the United States and Great Britain. The bloody conflict drew to a close in 1945, with Italy surrendering on May 2, Germany on May 7, and Japan on Aug. 14.