Which famous military ration product was originally rejected by soldiers due to poor branding until a marketing overhaul in 1944 dramatically increased its acceptance rate?

Military combat rations have evolved dramatically over centuries, from simple hardtack and salted meat to modern MREs (Meals, Ready-to-Eat). These products reflect changing technology, nutritional science, and logistics priorities. Beyond sustenance, combat rations represent fascinating case studies in branding, packaging innovation, and consumer psychology under extreme conditions. Test your knowledge about one of the most successful military product rebranding efforts of the 20th century!

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K-Ration (originally nicknamed 'Cardboard Delight' until rebranded with cigarettes and better packaging)
C-Ration (initially called 'Combat Meals' until renamed and given distinctive olive drab packaging)
D-Bar (first marketed as 'Survival Chocolate' until redesigned with a more appealing taste profile)
Mountain Ration (originally branded as 'Alpine Sustenance Packets' until simplified and given unit insignia)