Origins of World War I: Alliances, Rivalries, and Crises

Causes of the Great War

Relations between France and Germany were severely strained by territorial claims over Alsace and Lorraine, which France had lost in the 1870 Franco-Prussian War. Simultaneously, disputes between Russia and the Austro-Hungarian Empire for control of the Balkans created a volatile environment. Economic rivalries further fueled this climate of confrontation, as Great Britain and Germany competed for new markets and financial dominance. Germany's rapid industrial development necessitated expansion, which the British Empire perceived as a direct threat, particularly regarding German naval policy. Consequently, Britain sought a strategic alliance with France.

Formation of Power Blocs

By 1907, Europe was divided into two major opposing groups:

• Triple Alliance: Comprised of Germany, Austria-Hungary, and Italy. Created by Bismarck, it was intended to isolate France and ensure security for Austria and Italy against French aggression. Following Bismarck, Kaiser Wilhelm II pursued an expansionist nationalist policy and developed a powerful naval fleet.
• Triple Entente: Comprised of France, Russia, and the United Kingdom. France and Russia signed a military pact to support each other if attacked by the Triple Alliance. France renounced its ambitions in Egypt in exchange for British support.

The subsequent arms race served as a decisive step toward conflict, as all European powers—with the exception of the United Kingdom—doubled their land and naval forces, using the threat of war to justify domestic policies.

Colonial Encounters: The Moroccan Crises

In 1905, a crisis erupted in Morocco when Germany refused to accept an agreement between France and the United Kingdom regarding the division of territory between Spain and France, claiming it damaged German colonial interests. The Algeciras Conference was convened to prevent war, acknowledging Moroccan independence while establishing a French and Spanish protectorate. France emerged strengthened by its alliance with the United Kingdom. In 1911, the Agadir Crisis occurred; a subsequent agreement granted Germany part of the Congo in exchange for recognizing the French protectorate over Morocco.

The Balkan Crises

The Balkans, occupied by the weakening Ottoman Empire, became a hotbed of tension. Nationalist uprisings against Turkish rule encouraged the imperial ambitions of Russia and Austria-Hungary. In 1908, Austria-Hungary annexed Bosnia and Herzegovina, sparking protests from Serbia, which aspired to unite the South Slavs. In 1912, Balkan states formed the Balkan League to partition territories between the Adriatic and Aegean seas. A subsequent 1913 war between Serbia and Bulgaria led to a territorial reordering, which expanded Serbian influence and increased Russian involvement in the region.