History

The first world war(1914-1918)

The 4 important reasons lead to first world war

-Nationalism(民族主意)

-Alliance  System(同盟)

-Economic and colonial conflicts(經濟及殖民地鬥爭)

-Arms race(軍事徑賽)

Nationalism

-The development of nationalism was one of the factor the WW1

-The extremely nationalism developed in Balkan Peninsula such as Pan-Slavism

-This idea lead to the conflict between Austria and Serbia

-Serbian nationalist would like to sweep the influence of Austria out of Bosnia Herzegovina, in order to build up great Serbia

-As a result, Sarajevo Assassination was made by the radical nationalist of Serbia

-Moreover, the nationalism grew in those Balkan States, such as Bulgaria, Serbia, Rumania and Albania. The rivals between those nations proceed many conflicts and wars for example, First and Second Balkan War. Finally, the WW1 also broken out from Balkan Peninsula.