Why might it be a surprise that Hitler invaded the Soviet Union?

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Hello! If this answer doesn’t fulfill all of your questions, or it doesn’t have the exact information you are looking for, I apologize. But, I will try to help you to my best ability! <3

Again, hope this helps! Good luck! :D

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what are the issues?

this isn't a question and if you're going to list things be kind and use commas.