The assassination of the Austria-Hungarian successor to the throne, Franz Ferdinand d’Este, in Sarajevo on June 28, 1914 released accumulated clashes existing between individual European powers grouped into the two enemy camps of the Triple Entente and the Triple Alliance. Only in a month, on July 28, 1814, Austria-Hungary declared war on Serbia, which was accused of plotting the assassination. In order to protect Serbia, Russia reacted against Austria-Hungary, which was immediately followed by declaration of war on Russia by Germany. In the first decade of August 1914, basically all more significant European states except for Italy, which as the Triple...