Was nationalism a cause of World War 1 Why or why not Give examples -?

Yes, nationalism was a significant cause of World War I as it fostered intense rivalries among nations and ethnic groups. Nationalistic fervor in countries like Serbia fueled desires for independence from empires, particularly the Austro-Hungarian Empire, which directly contributed to the assassination of Archduke Franz Ferdinand. Additionally, the competition for colonial dominance and national prestige among powers like Germany, France, and Britain heightened tensions, leading to the war's outbreak. This sense of national superiority and competition played a critical role in escalating conflicts into a global war.