This learning activity focuses on enabling students to understand the complex causation of World War 1. It is a large enquiry, but it can be broken down into four sections, each with their own enquiry question. By tackling the four smaller enquiry sections, students should be able to address the big question: “How did 2 bullets fired in Sarajevo cause a war in 1914?”. The four sections are: - What happened in Sarajevo? - How did the Sarajevo assassination result in the major European powers going to war? - What was the political situation in Europe in the early 20th century? - But why did my country get involved in (or stay out of) World War One? - Students will need access to textbooks or online resources in order to research.