World War I (also known as the First World War, Great War or War of Wars, abbreviated WWI) was a military conflict centered on Europe that began in the summer of 1914. The fighting ended in late 1918. This conflict involved all of the world 's great powers,[4] assembled in two opposing alliances: the Allies (centred around the Triple Entente) and the Central Powers.[5] More than 70 million military personnel, including 60 million Europeans, were mobilized in one of the largest wars in history.[6][7] More than 9 million combatants were killed, due largely to great technological advances in firepower without corresponding ones in mobility. It was the second deadliest conflict in history.[8]
The assassination on 28 June 1914 of Archduke Franz Ferdinand of Austria, the heir to the throne of Austria-Hungary, is seen as the immediate trigger of the war. Long-term causes, such as imperialistic foreign policies of the great powers of Europe, such as the German Empire, the Austro-Hungarian Empire, the Ottoman Empire, the Russian Empire, the British Empire, France, and Italy, played a major role. Ferdinand 's assassination by a Yugoslav nationalist resulted in a Habsburg ultimatum against the Kingdom of Serbia.[10][11] Several alliances formed over the past decades were invoked, so within weeks the major powers were at war; as all had colonies, the conflict soon spread around the world.
On 28 July the conflict opened with the Austro-Hungarian invasion of Serbia,[12][13] followed by the German invasion of Belgium, Luxembourg and France; and a Russian attack against Germany. After the German march on Paris was brought to a halt, the Western Front settled into a static battle of attrition with a trench line that changed little until 1917. In the East, the Russian army successfully fought against the Austro-Hungarian forces but was forced back by the German army. Additional fronts opened after the Ottoman Empire joined the war in 1914, Italy and Bulgaria in 1915
Bibliography: [pic]Early life Anne Frank was born on 12 June 1929 in Frankfurt, Germany, the second daughter of Otto Frank (1889–1980) and Edith Frank-Holländer (1900–45) She continued writing regularly until her final entry of August 1, 1944.