Causes of World War I
... World War I is no exception. Many factors led to the start of the war. ... Through its nationalism, its alliances, and its ultimatum to Russia, war was inevitable. Germany was most responsible for starting World War I. Nationalism was one of the main causes of the First World War. ... The German people were convinced that the best way to prove their superiority was through war (Causes of World War I 1). ... This led to tensions in Europe that made war a likelihood (Causes of World War I 1). According to Brian Lavelle in World War I [The Great War], “Germany’s actions stimulated international rivalries and provoked a series of great-power confrontations that ultimately resulted in war.