The key terms related to World War I include Nationalism, Militarism, Imperialism, Alliance System, Archduke Franz Ferdinand, and Neutral. These concepts explain the underlying tensions and events that led to the war. Notably, the assassination of Archduke Franz Ferdinand was the immediate trigger for the conflict.
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The correct matches are: 1-c, 2-e, 3-d, 4-a, 5-b . These terms and definitions explain the main causes and early events of World War I. ;