Final answer:
The question touches upon historical themes of national pride and societal shifts, exemplified by Soviet propaganda during WWII and the unwavering Southern spirit during the Civil War, as well as the post-WWII changes in the American South.
Step-by-step explanation:
The content provided covers various historical periods, including the Soviet Union during World War II and the American South during the Civil War and post-World War II era. The Soviet posters featuring Stalin are indicative of the propaganda used to evoke a sense of national pride and military might. Similarly, the excerpt describing the belief in the Confederacy's ultimate triumph reflects the unwavering, though misguided, sentiment of Southern national pride during the Civil War.
These historical references illustrate how figures like Stalin and Lee became symbols of strength and assurance for their respective nations. Post-World War II, the Southern United States underwent significant social changes, such as the inclusion of women in more professional roles due to the war effort, signaling a shift in societal norms and contributing to the sense of national identity.