What were some causes of World War 1?

World War I was caused by a complex interplay of factors, including nationalism, militarism, and Imperialism. Nationalist fervor led to tensions among various ethnic groups and nations, particularly in the Balkans. The arms race and military alliances, such as the Triple Alliance and Triple Entente, created an environment ripe for conflict. The assassination of Archduke Franz Ferdinand in 1914 acted as the catalyst, triggering a chain reaction of alliances that ultimately plunged Europe into war.