What were the long term causes and the immediate circumstances that led to world war 1?

Nationalism: devotion to the interests and culture of one's nation

Militarism: the policy of building up armed forces in aggressive preparedness for war and their use as a tool of diplomacy

System of Alliance: a formal agreement or union between nations (Allies: France, Britain, Russia. Central Powers: Germany, Austria-Hungary, Ottoman Empire)

Circumstances of the cause of war was the assassination of Archduke Franz Ferdinand