Which innovative retail supply chain management technique was first widely implemented by the U.S. Army Exchange Service during World War II that revolutionized military logistics?

Military exchanges (Post Exchange/Base Exchange) represent one of history's most unique retail systems, serving military personnel worldwide for over a century. These stores have evolved from simple trading posts to sophisticated retail operations that affect military morale, readiness, and even strategic planning. This poll tests your knowledge about how military retail operations transformed throughout major conflicts and their impact on military history.

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Centralized distribution centers that could rapidly deploy standardized inventory packages to multiple theaters
RFID tagging system for tracking high-value military retail items across transport routes
Just-in-time inventory management with daily air deliveries to forward operating bases
Computerized inventory tracking using early IBM punch card systems at major supply depots