Which World War II-era military product marketing campaign was so successful that its slogan became part of everyday language and continued to be used decades after the war ended?

Throughout history, military equipment manufacturers have created some of the most recognizable brands and iconic marketing campaigns. These companies often had to balance promoting their products' effectiveness while navigating the complex ethics of warfare. This trivia question explores a famous marketing campaign that changed how military products were positioned to both government buyers and the public.

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The Jeep's "Go Anywhere, Do Anything" campaign by Willys-Overland Motors
M&M's "Melts in your mouth, not in your hands" campaign highlighting their use in military rations
Coca-Cola's "The Pause That Refreshes" campaign targeting troops overseas
Ray-Ban's "Aviator" sunglasses promotion featuring General MacArthur