Which revolutionary military recruitment campaign of World War I used consumer psychology principles so effectively that its approach is still studied in marketing classes today?

Throughout history, military recruitment has relied on sophisticated marketing and consumer psychology techniques. From ancient battle standards to modern digital campaigns, militaries worldwide have used compelling branding, emotional appeals, and cultural symbolism to attract recruits. This poll tests your knowledge of how military organizations have leveraged product marketing concepts to build their forces and public support through the centuries.

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The "I Want YOU" Uncle Sam poster by James Montgomery Flagg, which used direct address and personal responsibility to create individual obligation
The "Women of Britain Say GO!" poster campaign, which leveraged social pressure and gender expectations to motivate men to enlist
The "Daddy, what did YOU do in the Great War?" campaign, which pioneered guilt-based marketing by showing a future conversation with children
The "Your Country Needs YOU" Lord Kitchener poster, which used authority figure endorsement combined with direct consumer targeting