World War I was started by the assasination of the Archduke of Austria-Hungary (Frances Ferdinand) which was caused by a terrorist group known as Black-Hand led by Slavs who wanted a Slavik state. This lead to allies of both countries involved, Austria Hungary and the accused country (Serbia), to have allies who were eager to fight, having developed new "modern" (at the time) weaponry.
1944
you
Stared at what?
Germany invading Poland.
1939 you spellt war incorect
WW2 staretd because of hitler
World War 2 in Europe (1939-1945).
WWl stared in 1914 and ended in 1918
America declared its neutrality.
An American with a HUGE eyeball stared at the civil war. Trollolololooolll....
No. It is likely the USA would have gone to war with Japan but it may not have turned into a world war.
I presume you mean 'started'. Germany and Austria wre the first to declare war.