On 28 July 1914, Austria-Hungary declared war on Serbia because of the Assassination of Archduke Franz Ferdinand. Within days, long-standing mobilization plans went into effect to initiate invasions o
To my peoples!, the manifesto announcing Austria-Hungary's declaration of war against Serbia.
Hungarian Prime Minister Tisza and Chief of the Army General Staff Hötzendorf in Vienna, 15 July 1914
The diplomatic history of World War I covers the non-military interactions among the major players during World War I. For the domestic histories of participants see home front during World War I. For
King Ferdinand (right) defies the German Kaiser in this British poster.
A timeline of events on the Eastern and Middle-Eastern theatres of World War I
The revolt of ethnic Czech units in Austria in May 1918 was brutally suppressed. It was punished as mutiny.
A German postcard of the Ottoman Navy early in the war. The caption reads "Turkey gets going". The portrait shows Sultan Mehmed V.