Which WWII-era military recruitment advertising campaign resulted in over 2 million women joining the workforce in defense industries?

Throughout military history, advertising campaigns have played crucial roles in recruitment, public morale, and war effort support. From iconic posters to sophisticated multimedia strategies, military advertising has evolved dramatically while maintaining its core purpose. This trivia question explores one of the most influential military advertising campaigns that significantly impacted recruitment during a critical historical period. Test your knowledge of how military institutions have communicated their message to the public.

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"Rosie the Riveter" with the slogan "We Can Do It!"
"Uncle Sam Needs You" pointing finger posters
"Loose Lips Sink Ships" security campaign
"Buy War Bonds" Treasury Department drive