The Triple Alliance was an agreement between Germany, Austria-Hungary, and Italy. It was formed on 20 May 1882 and renewed periodically until it expired in 1915 during World War I. Germany and Austria-Hungary had been closely allied since 1879. Italy was looking for support against France shortly after it lost North African ambitions to the French.
The Berlin Conference of 1884–1885, also known as the Congo Conference (German: Kongokonferenz) or West Africa Conference (Westafrika-Konferenz), regulated European colonization and trade in Africa during the New Imperialism period and coincided with Germany's sudden emergence as an imperial power. The conference was organized by Otto von Bismarck, the first chancellor of Germany.
The Triple Ententedescribes the informal understanding between the Russian Empire, the French Third Republic and Great Britain. It built upon the Franco-Russian Alliance of 1894, the Entente Cordiale of 1904 between Paris and London, and the Anglo-Russian Entente of 1907. It formed a powerful counterweight to the Triple Alliance of Germany, Austria-Hungary, and Italy. The Triple Entente, unlike the Triple Alliance or the Franco-Russian Alliance itself, was not an alliance of mutual defence.
The decision of the Balkan League was prompted by Macedonia's rebellion in Ottoman-held territory. This rebellion caused waves in the region by demonstrating weakness in the Ottoman Empire. Taking advantage of this chaos, Austria-Hungary invaded Bosnia and Herzegovina removing Serbian influence from the area.
Archduke Franz Ferdinand of Austria and his wife Sophie are shot to death by a Bosnian Serb nationalist during an official visit to the Bosnian capital of Sarajevo on June 28, 1914. The killings sparked a chain of events that led to the outbreak of World War I by early August.