The world War one started in 1914 and ended in 1918
The main causes of the first WW was the economic competition between the countries, other cause was the growth of the military of some countries that seems like a alarm to some other countries that doesn't have a big military army, but this two events just helped that the war started but the event that makes watter blows down the glass was the assassination of FRANZ Ferdinand the archduke of the Austrohungarian empire, but he was a very important person because he has his allies so that was the reason that they kill him.
The truth is that I don't really remember his life but one day in the history channel or in Discovery channel i saw Franz Ferdinand life, and how some terrorists i think kill him with a brilliant plan.
This war was fought by to bands first the triple alliance that was composed by Italy, Germany and the AustroHungarian empire, and the triple Entente that were Russia, France and the United Kingdom.
This war was a "technological war" because before that time weapons and all the bombs were new, but the specific thing that changes all was the mass production, the excess of production. (industries)
But the war ended because in 1917 the united States enter to the war but they didn't enter before because they were afraid that Mexico in the south of the US can attack them because Simmer send a telegram to Mexico that said that if they attack the US they will get again the part of land that they had lost.
And the other reason was that two passengers boats were drowned.
So when the united states enter to the war both the triple Entente and the triple Alliance were weak, they had been fighting for 3 years and when they entered they destroy the allies and they won the war.
