CAUSES OF THE FIRST WORLD WAR
Britain and Germany became involved in a naval arms race.
As a result of these disputes, two alliances were established.
Triple Alliance
German Empire
Austro-Hungarian Empire
Italy
Triple Entente
Great Britain
France
Russian Empire
On 28th June 1914, the heir of the Austro-Hungarian Empire was assassinated by a Serbian gunman.
The Austro-Hungarian Empire declared war on Serbia. With this war started the First World War.
Between 1878 and 1908, the Austro-Hungarian Empire occupied and annexed Bosnia-Herzegovina; this led to nationalists protests.
Industrialised European countries expanded their empires and competed for having more territories.
They had colonies especially in North Africa.