laerning about world war 1
World War I (WWI), which was predominantly called the World War or the Great War from its occurrence until 1939, and the First World War or World War I thereafter, was a major war centred in Europe that began on 28 July 1914 and lasted until 11 November 1918. It involved all the world's great powers,[5] which were assembled in two opposing alliances: the Allies (centred around the Triple Entente of Britain, France and Russia) and the Central Powers (originally centred around the Triple Alliance of Germany, Austria-Hungary and Italy).[6]. These alliances both reorganised (Italy fought for the Allies), and expanded as more nations entered the war.