Which military supply chain innovation from World War II had the most significant impact on modern retail supply chain management?

Throughout history, military supply chain management has revolutionized retail practices. From Napoleon's famous quote that 'an army marches on its stomach' to modern military logistics systems that influence global retail operations, the connection between military logistics and civilian retail is profound. This poll tests your knowledge of how military supply chain innovations transformed retail operations worldwide.

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The standardized shipping container, developed by the U.S. military to efficiently transport supplies across theaters of war
The convoy system for protecting merchant ships, which later influenced retail delivery scheduling
The military's K-ration packaging, which pioneered single-use packaging now common in retail
The P-38 can opener, which revolutionized food packaging accessibility in military and later civilian markets