First Balkan War begins as Balkan states attack the Ottoman Empire

Kaiser Wilhelm II’s visit to Tangier challenged France’s growing influence in Morocco and triggered an international crisis. The settlement at Algeciras in 1906 eased the immediate dispute but...

Communities in German East Africa rose against colonial labor demands, taxation, and cotton schemes. German counterinsurgency used scorched-earth tactics and famine, causing mass death. The uprising...

The annexation of Bosnia and Herzegovina provoked protests in Serbia and Russia and intensified conflict over the Balkans. The crisis showed how imperial rule, nationalism, and great-power rivalry...

Germany sent the gunboat Panther to Agadir amid France’s intervention in Morocco. The crisis ended with a territorial bargain, but reinforced perceptions of encirclement and rivalry. Morocco was not...

Italy attacked Ottoman Libya to expand its empire, using aerial bombardment and occupying coastal cities. The war ended with Italy taking Libya and the Dodecanese. Anti-colonial resistance...

Albanian leaders declared independence as Ottoman power collapsed in the Balkans. The new state’s borders were contested and imposed amid great-power bargaining, illustrating how claims of national...

Bulgaria attacked former allies over the division of Ottoman territories, triggering a second Balkan war. The settlement left grievances across the region and intensified strategic anxieties in...

Archduke Franz Ferdinand and Sophie Chotek were assassinated by Gavrilo Princip, a Bosnian Serb nationalist. The killing became the trigger for a diplomatic crisis, but the wider war grew from...

Vienna delivered a severe ultimatum to Serbia, including demands that Serbian officials permit Austro-Hungarian participation in the investigation. Serbia accepted most demands but not all....

Austria-Hungary declared war after receiving Germany’s support. Mobilizations and declarations followed across Europe. The chain was not an automatic mechanical effect of alliances: political...