World War I: Causes, Characteristics, Phases, and Consequences
1. Causes of World War I
Militarism (Arms Race)
Many countries believed it was important to build large armies and navies. This led to an arms race, with each country trying to outdo the others.
Alliance Systems
Triple Alliance: Germany, Austria-Hungary, and Italy
Triple Entente: France, Britain, and Russia
Two opposing groups had grown up, believing that a ‘balance of power’ would prevent war. However, these alliances also meant that a conflict between two countries could quickly escalate into a larger war.
Imperialism (Colonial Conflicts)
European nations were creating empires and coming into conflict over colonies. After 1900, Germany built up its navy, which frightened the British.
Nationalism (Promotion of National Identity)
Nationalism was a powerful force in the early 20th century. All countries were looking out for their own interests, and this made it difficult to resolve disputes peacefully.
Why Did War Break Out?
A number of different factors contributed to a situation where the First World War could break out. The assassination of Archduke Franz Ferdinand of Austria-Hungary in Sarajevo on June 28, 1914, provided the spark that ignited the conflict.
2. Characteristics of World War I
Global Conflict
Sixteen nations and their colonial empires took part in WWI. The mobilization of the colonial empires took the conflict to other continents. Colonial empires provided troops and economic aid.
New Weapons and Technology
New weapons, such as machine guns, flamethrowers, toxic gases, mines, submarines, and airplanes, were used for the first time in WWI. Powerful cannons were manufactured, and the first tanks and fighter planes appeared. The use of these new weapons led to a greater number of casualties than in previous wars.
Trench Warfare
The First World War was fought in trenches in terrible conditions. By the winter of 1915, the opposing sides had both dug long ditches called trenches. These lines of narrow trenches stretched from the Belgian coast to Switzerland and were known as the Western Front. Over five million British soldiers spent time living in these muddy, miserable ditches, taking it in turns to be on the Front Line. Soldiers on the Front Line would be instructed to leave their trench and venture into dangerous No Man’s Land to try to push back the enemy.
Involvement of Civilian Population
Most of the male civilian population of army-recruitment age was mobilized to fight in the war.
Women were recruited to work in factories or as nurses on the front lines.
Propaganda
Governments used propaganda to keep up public morale and support for the war. This propaganda generated feelings of patriotism as well as hatred towards the enemy. Newspapers and the letters sent from soldiers to their families were censored to avoid public dissent.
3. Phases of World War I
Outbreak of War (1914)
Franz Ferdinand, heir to the Austro-Hungarian Empire, was assassinated in Sarajevo, the capital of Bosnia. The assassin was a Bosnian student who had links to Serbian nationalist organizations.
Austria-Hungary accused Serbia of the assassination and declared war on July 28. The confrontation between Austria-Hungary and Serbia had become a European war, with Russia, France, Great Britain, and Belgium all drawn into the conflict.
The War of Movements (1914-1915)
The war began simultaneously on the Eastern and Western Fronts.
The French and British armies stopped the German advance at the Battle of the Marne.
On the Eastern Front, Germany beat Russia at the Battle of Tannenberg.
Trench Warfare (1915-1917)
After the Battle of the Marne, the Western Front became immobile. Trenches were built from Switzerland to the North Sea, resulting in enormous casualties. Both the Central Powers and the Allied Powers had to find new allies.
The Ottoman Empire entered the war in late 1914, followed by Italy and Bulgaria in 1915 and Romania in 1916.
War Ends (1917-1918)
1917 was a decisive year for the war. The terrible conditions of trench warfare caused many soldiers to abandon their duties, and many revolts took place on the front.
Russia signed the Brest-Litovsk Treaty with Germany (1918) after the Bolshevik Revolution and withdrew from the war.
The US joined the War in 1917.
An armistice was signed on November 11, 1918.
4. The Peace and Consequences of World War I
The Paris Peace Conference (1919-1920)
The defeated countries signed peace treaties that required them to:
- Reduce their armies
- Pay war reparations
- Make territorial concessions
Germany was particularly harshly treated in the Treaty of Versailles. Germany was blamed for the war and forced to:
- Lose Alsace-Lorraine
- Be separated from Prussia by the Danzig corridor
- Give up all its colonies
- Pay war reparations
The Germans felt humiliated, and this resentment would contribute to the rise of Nazism in the 1930s.
League of Nations
US President Woodrow Wilson presented his Fourteen Points, based on his vision for peace and a desire to not seek revenge. The League of Nations (LN) was created to guarantee peace and cooperation between states.
However, the project failed because Germany and the other defeated nations, as well as the USSR, were initially excluded. The US Senate also voted not to join the League of Nations.
Casualties
Ten million soldiers died in World War I. There were also a large number of civilian casualties due to malnutrition and disease. The war caused widespread demographic decline.
More Consequences
Material Losses: European countries were in debt because of war loans.
Women’s Suffrage: Most countries adopted universal male suffrage and granted the vote to women in consideration for their work during the war.
Rise of the United States: The United States emerged from World War I as the most powerful country in the world.
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