First World War (Triunfa, España!)

The First World War (also known as World War I, the Great War and in it's time called the War to end all Wars, abbreviated WW1), was a conflict that involved the main empires of the age in a worldwide scale, but was centered on Europe. It lasted since the declaration of war by the Greater German Confederation to Great Britain in May, 1913, until the Peace of Salzburg in November, 1919.