4 reasons why World War 1 began?

World War I began due to a complex interplay of factors, including militarism, alliances, Imperialism, and nationalism. Militarism fostered an arms race among European powers, while a web of alliances created a situation where a conflict involving one nation could quickly escalate. Imperialism heightened rivalries as countries competed for colonies and resources. Finally, intense nationalism fueled tensions and conflicts, particularly in the Balkans, culminating in the assassination of Archduke Franz Ferdinand, which served as the immediate catalyst for the war.