The consequences of this great war that took place in Europe between 1914 and 1918 are explained in years ago, since 1870. Germany defeated France in the Franco-Prussian War, where Alsace and Lorraine were annexed, so these two countries would begin a arms race until everything exploded in 1914.

The imperialism and colonialism of the late nineteenth century also had to do with the "pikes" that existed between the different countries, and the desire of Germany to control more territory, but arrived late and did not create a great empire, such as France or Great Britain .

A few years before the Great War, the European map was a network of alliances, which finally remained as in the map below.

WWI

Two blocks were created before the war: The Triple Alliance (Germany, Austria-Hungary and Italy) and the Triple Entente (United Kingdom, Russia and France) in the following years of war will unite and withdraw contenders

The western front trenches were opened in which a span of territory was won and the enemy meant tens of miles of dead. It became necessary to search for new allies that would bring more soldiers to the war.

Italy intervened in favor of the allies, and Bulgaria and the Turkish Empire helped the central powers without the war seems to have a winning son.

The crisis of 1917 and the end of the war.
During the year 1917 the Bolshevik Revolution triumphed in Russia and the revolutionaries, worried about their internal problems, signed peace with Germany and withdrew from the war.
In 1917, the British, French and Italians defeated Austria and its allies. The Germans were defeated and there were revolts in their army and in their marina, and there were also demonstrations against the government workers.
The war in the rear

The 1st World War was a new type of movement for the mobilization of many resources and the involvement of the entire civilian and military population. The new national armies recruit all men of military age.
The technical means, transport and armament, cause a huge amount of deaths. The contenders reconverted their industries with the aim of manufacturing weapons.
Organization of peace
In January 1919, a conference was inaugurated in Paris to establish the conditions of peace. 32 countries attended, but they took the decision E.E.U.U., France, Great Britain and Italy. President Wilson tried to contribute his vision of a peace in concord and the absence of revenge against Germany.
The Treaty of Versailles
Germany is declared guilty only of the outbreak of the conflict and is forced to pay heavy war reparations, especially to Belgium and France.

The entire army is dismantled, as well as its marina, and rearmament is prohibited. His colonial empire, which was divided between Great Britain and France, was also snatched away.

Alsace and Lorraine were returned to France; Schleswig to Denmark; Two cantons to Belgium, and Poznania and a part of Prussia to Poland.