Which company famously rebranded its product during WWII, changing its marketing strategy from a medicinal product to a morale-boosting treat for soldiers, forever altering its brand identity?

Throughout history, some products and brands have undergone remarkable transformations that not only changed their business trajectory but actually influenced historical events or cultural movements. This trivia question explores one such pivotal rebranding moment that intersected with significant historical developments. Test your knowledge of how commercial enterprises have shaped or responded to historical moments through their product positioning and brand identity.

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Mars, Inc. with M&M's (created specifically so chocolate wouldn't melt in soldiers' hands)
Coca-Cola (rebranded from a medicinal tonic to a refreshing beverage for troops)
Wrigley's chewing gum (shifted from digestive aid to combat stress reliever)
Gillette (repositioned from luxury shaving to essential military supply)