How Did Nationalism Cause Ww1

World War 1 was a military conflict involving European nations, and other nations across the world, which lasted from August 1914 to November 1918. It was first centered in Europe between the nations and the tensions between Serbia and Austria. Many innocent citizens died during this significant war. The major causes of World War I are militarism: building up an army and weapons to be prepared for wars, alliances: close association of nations, imperialism: one nation controlling another, and nationalism: deep devotion to one's country. Nationalism intensified hatred in European countries, which played as an important role during the war. Nationalism caused World War 1 because of its growing force in Europe, people’s support for their own country, and the tensions between nations’ nationalism.
This leads the citizens of the nations to rise for their own country. “...I left the good living the Prussian king offered me,... rather than let my children be turned into foreigners… You must love your country like a mother… and work for her like good sons and daughters…” Because people taught their generations to support their country, the younger generations find hatred on other countries. Due to the spreading of nationalism across Europe, this causes the rise of tensions between Serbia and Austria.
The tensions between Serbia and Austria grew as time moved on. In the Modern World History Textbook, it mentions that, “Serbia, for example, had a large Slavic population. It hoped to absorb all the Slavs on the Balkan Peninsula. However,.. Austria-Hungary opposed such an effort… In 1908, Austria annexed Bosnia and Herzegovina.” Since these two areas have large Slavic populations, Serbians were outraged by the Austrian-Hungarian act . Serbians support their country’s nationalism which only caused Austria to be unsatisfied with it that all leads to tensions between