Which iconic military recruitment advertisement campaign significantly increased enlistment rates during WWI through revolutionary product marketing techniques?

Throughout history, militaries around the world have used various product marketing techniques to accomplish recruitment goals, boost morale, and maintain public support. From iconic posters to memorable slogans, military marketing has evolved dramatically over time. This poll tests your knowledge of how military forces have packaged and promoted their 'product' to different audiences throughout history.

This is a live public trivia poll on AIPolls.Net. Vote and see real-time results.

Uncle Sam's 'I Want YOU' poster (USA, 1917)
Lord Kitchener's 'Your Country Needs You' poster (UK, 1914)
The White Feather Campaign (UK, 1914)
The 'Women of Britain Say GO!' poster (UK, 1915)