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Introduction
World War I was the result of leaders' aggression towards other
countries which was supported by the rising nationalism of the
European nations. Economic and imperial competition and fear of
war prompted military alliances and an arms race, which further
escalated the tension contributing to the outbreak of war.
Nationalism
At the settlement of the Congress of Vienna in 1815, the principle
of nationalism was ignored in favor of preserving the peace. Germany
and Italy were left as divided states, but strong nationalist
movements and revolutions led to the unification of Italy in 1861
and that of Germany in 1871. Another result of the Franco-Prussian
War of 1870-71 was that France was left seething over the loss
of Alsace-Lorraine to Germany, and Revanche was a major goal of
the French. Nationalism posed a problem for Austria-Hungary and
the Balkans, areas comprised of many conflicting national groups.
The ardent Panslavism of Serbia and Russia's willingness to support
its Slavic brother conflicted with Austria-Hungary's Pangermanism.
Imperialism
Another factor which contributed to the increase in rivalry in
Europe was imperialism. Great Britain, Germany and France needed
foreign markets after the increase in manufacturing caused by
the Industrial Revolution. These countries competed for economic
expansion in Africa. Although Britain and France resolved their
differences in Africa, several crises foreshadowing the war involved
the clash of Germany against Britain and France in North Africa.
In the Middle East, the crumbling Ottoman Empire was alluring
to Austria-Hungary, the Balkans and Russia.
Bismarck and Alliances
World War I was caused in part by the two opposing alliances developed
by Bismarckian diplomacy after the Franco-Prussian War. In order
to diplomatically isolate France, Bismarck formed the Three Emperor's
League in 1872, an alliance between Germany, Russia and Austria-Hungary.
When the French occupied Tunisia, Bismarck took advantage of Italian
resentment towards France and created the Triple Alliance between
Germany, Italy and Austria- Hungary in 1882. In exchange for Italy's
agreement to stay neutral if war broke out between Austria-Hungary
and Russia, Germany and Austria-Hungary would protect Italy from
France. Russia and Austria-Hungary grew suspicious of each other
over conflicts in the Balkans in 1887, but Bismarck repaired the
damage to his alliances with a Reinsurance Treaty with Russia,
allowing both powers to stay neutral if the other was at war.
Collapse of Bismarckian Alliances
However, after Bismarck was fired by Kaiser
William II in 1890, the traditional
dislike of Slavs kept Bismarck's successors from renewing the
understanding with Russia. France took advantage of this opportunity
to get an ally, and the Franco- Russian Entente was formed in
1891, which became a formal alliance in 1894. The Kruger telegram
William II sent to congratulate the leader of the Boers for defeating
the British in 1896, his instructions to the German soldiers to
behave like Huns in China during the Boxer Rebellion, and particularly
the large- scale navy he was building all contributed to British
distrust of Germany.
As a result, Britain and France overlooked all major imperialistic conflict between them and formed the Entente Cordiale in 1904. Russia formed an Entente with Britain in 1907 after they had reached an understanding with Britain's ally Japan and William II had further alienated Russia by supporting Austrian ambitions in the Balkans. The Triple Entente, an informal coalition between Great Britain, France and Russia, now countered the Triple Alliance. International tension was greatly increased by the division of Europe into two armed camps.
Arms Race
The menace of the hostile division led to an arms race, another
cause of World War I. Acknowledging that Germany was the leader
in military organization and efficiency, the great powers of Europe
copied the universal conscription, large reserves and detailed
planning of the Prussian system. Technological and organizational
developments led to the formation of general staffs with precise
plans for mobilization and attack that often could not be reversed
once they were begun. The German von Schlieffen
Plan to attack France before Russia
in the event of war with Russia was one such complicated plan
that drew more countries into war than necessary.
Armies and navies were greatly expanded. The standing armies of France and Germany doubled in size between 1870 and 1914. Naval expansion was also extremely competitive, particularly between Germany and Great Britain. By 1889, the British had established the principle that in order to maintain naval superiority in the event of war they would have to have a navy two and a half times as large as the second-largest navy. This motivated the British to launch the Dreadnought, invented by Admiral Sir John Fisher, in 1906. The Russo-Japanese War of 1904-1905 had demonstsrated how effective these battleships were. As Britain increased their output of battleships, Germany correspondingly stepped up their naval production, including the Dreadnought. Although efforts for worldwide disarmament were made at the Hague Conferences of 1899 and 1907, international rivalry caused the arms race to continue to feed on itself.
Crises in Africa
The friction of an armed and divided Europe escalated into several
crises in Morocco and the Balkans which nearly ended in war. In
1905, Germany announced its support of independence for Morocco,
the African colony which Britain had given France in 1904. The
British defended the French, and war was avoided by a international
conference in Algeciras in 1906 which allowed France to make Morocco
a French protectorate.
Bosnian Crisis of 1908
Another conflict was incited by the Austria-Hungarian annexation
of the former Turkish province of Bosnia in 1908. The Greater
Serbian movement had as an object the acquisition of Slavic Bosnia,
so Serbia threatened war on Austria-Hungary. Russia had pledged
their support to Serbia, so they began to mobilize, which caused
Germany, allied with Austria-Hungary, to threaten war on Russia.
The beginning of World War I was postponed when Russia backed
down, but relations between Austria- Hungary and Serbia were greatly
strained.
Morocco II
A second Moroccan crisis occurred in 1911 when Germany sent a
warship to Agadir in protest of French supremacy in Morocco, claiming
the French had violated the agreement at Algeciras. Britain again
rose to France's defense and gave the Germans stern warnings.
Germany agreed to allow France a free hand in Morocco in exchange
for part of the French Congo. In the Balkan Wars of 1912-13, the
Balkan States drove the Turks back to Constantinople and fought
among themselves over territory. Tensions between Serbia and Austria-Hungary
increased when Austria-Hungary forced Serbia to abandon some of
its gains.
Assassination in Sarajevo
Europe had reached its breaking point when on June 28, 1914, Archduke
Francis Ferdinand, heir to the Austria-Hungarian throne, was assassinated
in Sarajevo, Bosnia, by a Serbian nationalist belonging to an
organization known as the Black
Hand(Narodna Obrana). Immediately following
the assassination Germany pledged its full support (blank check)
to Austria-Hungary, pressuring them to declare war on Serbia,
while France strengthened its backing of Russia. Convinced that
the Serbian government had conspired against them, Austria-Hungary
issued Serbia an unacceptable ultimatum, to which Serbia consented
almost entirely.
Falling Dominoes
Unsatisfied, Austria-Hungary declared war on Serbia on July 28,
1914. On July 29, Russia ordered a partial mobilization only against
Austria-Hungary in support of Serbia, which escalated into a general
mobilization. The Germans threatened war on July 31 if the Russians
did not demobilize. Upon being asked by Germany what it would
do in the event of a Russo-German War, France responded that it
would act in its own interests and mobilized. On August 1, Germany
declared war on Russia, and two days later, on France. The German
invasion of Belgium to attack France, which violated Belgium's
official neutrality, prompted Britain to declare war on Germany.
World War I had begun.