Phases of the war by JOSE MARIANO DÍAZ BERNAL

1. The War of Movement

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The war began on the Western Front when the German army suddenly attacked France through Belgium and Luxembourg

. The Germans hoped to win quickly so it would be able to then concentrate on the Eastern Front.

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By the beginning of September 1914, the Germans were 40 km from Paris. However, the French and British armies stopped

the advance at the Battle of the Marne.

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On the Eastern Front, Germany beat Russia at the Battle of Tannenberg.

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After the Battle of the Marne, the Western Front became immobile. Trenches were built from

Switzerland to the North Sea. Even the smallest advances made during this phase resulted in

enormous deaths. From that point on, both the Central Powers. The Ottoman Empire entered the war in late

1914, followed by Italy and Bulgaria in 1915 and

Romania in 1916.

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The Germans launched a new offensive on the western Front in 1916, but were stopped by the French at the Battle of Verdun.

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The French and British then attacked the

German lines at the Battle of the Somme. Both

offensives achieved very little, despite the

enormous casualties on both sides.

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1917 was a decisive year for the war. On the one hand, the terrible conditions of trench warfare caused many soldiers to

abandon their duties and many revolts took place on the front. On the other, Russia signed the Brest-Litovsk Treaty with

Germany (1918) after the Bolshevik Revolution and retired from the war.

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The United States joined the war in 1917 for various reasons, but mainly as a consequence of the sinking of the US ocean

liner, the Lusitania, in 1915 by Germany, the intervention of the United States made it a truly global conflict.

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In 1918, the Allies defeated Austria-Hungary on the Eastern Front, and the Austro-Hungarian and Ottoman empires

surrendered and called for an armistice. The Germans were defeated on the Western Front at the Second Battle of the

Marne. There were revolts in the German army and navy, as well as workers' demonstrations against the government. As a

result, the Kaiser abdicated and Germany surrendered. An armistice was signed on 11 November 1918, bringing the war

to an end.