Which innovative supply chain practice, now standard in modern retail, was first widely implemented during WWII to accelerate military production?

During World War II, American manufacturing underwent one of history's most remarkable transformations, converting civilian production to military output at unprecedented speed and scale. This massive supply chain revolution helped the Allies achieve victory, but also permanently changed retail and manufacturing practices worldwide. Test your knowledge about this pivotal moment in military-industrial history that shaped modern supply chain management.

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Just-in-time inventory management
Standardized interchangeable parts across manufacturers
RFID tracking of individual components
Blockchain verification of material sources