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Austria-Hungary's involvement in World War I was by the assassination of Archduke Franz Ferdinand, who was set to inherit the Austro-Hungarian throne, he was assassinated in Sarajevo on June 28, 1914.

This Assassination was formed by a Bosnian Serb, Gavrilo Princip, who was involved with the nationalist party of Bosnia.

Austria-Hungary blamed Serbia for the Assassination of Archduke Franz Ferdinand and with Germany in Austria-Hungary’s ear, they declared war on Serbia on July 28, 1914.

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He was the ruler of Austria-Hungary at the start of the war, Franz Joseph was 84 years old when war broke out. His role in the war was mostly symbolic. He died in 1916.

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He became ruler after the death of Franz Joseph. He wanted peace and started negotiations for Austria-Hungary, he tried to set peace with the Allies in 1917 and 1918, but he was unsuccessful, his time as ruler marked the beginning of the decline of the Austro-Hungarian Empire.

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Significant Battles Austria-Hungary Participated In:  

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Significant Battles Austria-Hungary Participated In:  

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Battle of Tannenberg (August 26–30, 1914)

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Battle of Tannenberg (August 26–30, 1914)

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The Battle of Tannenberg was fought between the Germans and Russians, Germans had won this battle which helped them to stabilize their eastern front. However, this battle affected Austria-Hungary because Austria-Hungary relied on German military support in the early days of the war.

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Propaganda: "Austria-Hungary: Unity for Victory" Poster

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Propaganda: "Austria-Hungary: Unity for Victory" Poster

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This propaganda poster showed the unity between the Austro-Hungarian Empire, which had many different races, from Germans to Hungarians.

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In the final months of the war, Nationalist movements within the empire in countries in Hungary had gained strength and wanted to become free of the empire.

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The Treaty of Saint-Germain ended the war between Austria and the Allies. This treaty was not good for Austria because it imposed harsh penalties on Austria, including the loss of large portions of its territory to Italy, Czechoslovakia, and Poland.

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Austria-Hungary lost nearly two-thirds of its territory and significant portions of its population. The empire was reduced to a much smaller Austria, and Hungary became an independent state.

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“The Balkans.” Alpha History, https://alphahistory.com/worldwar1/balkans/.

Cornwall, Mark. “Propaganda at Home (Austria-Hungary).” encyclopedia.1914-1918, https://encyclopedia.1914-1918-online.net/article/propaganda-at-home-austria-hungary/.

Britannica, The Editors of Encyclopaedia. "Treaty of Saint-Germain". Encyclopedia Britannica, 3 Sep. 2024, https://www.britannica.com/event/Treaty-of-Saint-Germain. Accessed 7 February 2025.

Britannica, The Editors of Encyclopaedia. "Battle of Tannenberg". Encyclopedia Britannica, 19 Aug. 2024, https://www.britannica.com/event/Battle-of-Tannenberg-World-War-I-1914. Accessed 7 February 2025.

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https://alphahistory.com/worldwar1/world-war-i-documents/