How Imperialism, Militarism, Nationalism, and Entangled Alliances Started World War 1a) Define the termb) Give an explanation of how the Imperialism, Militarism, Nationalism, and Entangled Alliances contributed to World War 1 c) Each term needs to have an example of what you are explaining, and details of the countries involved d) Say what major countries made up the Central Powers and Allied Powers e) Conclusion needs to talk about how Imperialism had the most impact on World War 1