Throughout this discussion, a great, red elephant has been standing in the room. Communism. This blog has touched on this topic numerous times throughout the discussion of World War II. This blog post went into details about the ideology of communism and socialism, and how these gave rise to fascism. A fear of communism pervaded the entirety of the 20th century, from the 1905 Revolution to the Cold War. This blog post with detail with the impact Communism had on World War II.