German General Alfred von Schlieffen's plan aimed to avoid a war on two fronts
German army to invade France through neutral Belgium, defeat France, then move to the eastern front against Russia
The Anglo-German Naval Race:
Kaiser William II wanted Germany to challenge Britain's navy
Germany ordered the building of battleships and cruisers
Britain responded by building the Dreadnought battleship
The Tangier Crisis, 1905:
Kaiser William opposed French actions in Morocco
Conference in Algericas calmed tensions, France gained rights in Morocco
The Agadir Crisis, 1911:
Kaiser interfered in Moroccan affairs, leading to tensions with Britain
Kaiser ordered German warships to leave Agadir, avoiding war but intensifying naval race
The Crisis over Bosnia-Herzegovina, 1908:
Austria-Hungary seized Bosnia-Herzegovina, leading to tensions with Serbia
Balkan Wars in 1912-1913 resulted in Turkey losing Balkan lands and the creation of Albania
The Sarajevo Murders, 28th June 1914:
The Black Hand planned to unite Slav peoples in the Balkans into Yugoslavia
Archduke Franz Ferdinand and his wife were assassinated by Gavrilo Princip in Sarajevo
The Countdown to War:
The Sarajevo murders led to tensions between Austria and Serbia, ultimately leading to another war in the Balkans
The Sarajevo murders led directly to another war in the Balkans
The Austrian Government sent an ultimatum to King Peter of Serbia, giving him 48 hours to agree to their demands
King Peter agreed to all demands except allowing Austrian officials into Serbia, leading to Austria declaring war on Serbia
Russia, being Slavs like the Serbs, prepared for war to help Serbia against Austria-Hungary
Kaiser William sent an ultimatum to Tsar Nicholas to stop the Russian army's preparations for war
Nicholas refused, leading to Germany declaring war on Russia
France, as an ally of Russia, declared war on Germany and mobilized its army
Germany declared war on France and invaded neutral Belgium
Britain honored its promise to protect Belgium's neutrality and sent an ultimatum to Germany
Britain declared war on Germany when no response came from Berlin
The Great Powers of Europe were now at war with each other: the Central Powers (Germany and Austria-Hungary) against the Entente or Allied Powers (Britain, France, and Russia)
The Balkan Wars of 1912-1913 were also a contributing factor to the outbreak of the First World War
The assassination of Archduke Franz Ferdinand in Sarajevo on 28th June 1914 was the incident that brought war between Austria-Hungary and Serbia
France and Russia supported Serbia, while Germany supported Austria-Hungary in the conflict
Germany invaded neutral Belgium as part of the Schlieffen Plan to defeat France, leading to Britain declaring war on Germany
By 3rd August 1914, the five Great Powers had entered the war on two opposing blocs, with Italy and Turkey joining the war in 1915