Here is ur answer.... ONE way to remember the FOUR main causes of World War I is to remember the acronym M – A – I – N. (M = Militarism, A = ALLIANCES, I = Imperialism, and N = Nationalism.) MILITARISM was one of the four MAJOR causesof the war. It was an “ARMS race.” Because BRITAIN had a large navy, Germany wanted a large navy too.... ________ Thank you