Which packaging innovation, first widely implemented by the U.S. military during WWII, revolutionized supply chain management and was later adopted by civilian retail?

During World War II, military logistics and supply chain management underwent revolutionary changes that would later influence civilian retail operations. One innovation in particular represented a dramatic shift in how products were packaged, transported, and distributed to troops in combat zones. This innovation would later become standard practice in civilian retail supply chains worldwide. Test your knowledge of this pivotal development in military retail history!

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Standardized shipping containers
Vacuum-sealed packaging
Barcoding system
Shrink-wrapped pallets