Text structure Parts Paragraphs Main Ideas Part 1 Par. 1-2 Introduction--Both Napoleon's and Hitler's military campaigns failed because of the severity of the russian winter. Part 2 Par. 3-11 Napoleon's military campaign against Russia Part 3 Par. 12-20 Hitler's military campaign against the Soviet Union Part 4 Par. 21 Conclusion-The elements of nature must be reckoned with in any military campaign.Text structure Parts Paragraphs Main Ideas Part 1 Par. 1-2 Introduction—Both Napoleon’s and Hitler’s military campaigns failed because of the severity of the Russian winter. Part 2 Par. 3-11 Napoleon’s military campaign against Russia Part 3 Par. 12-20 Hitler’s military campaign against the Soviet Union Part 4 Par. 21 Conclusion—The elements of nature must be reckoned with in any military campaign