Which retail technology innovation was first widely adopted by the Army & Air Force Exchange Service (AAFES) in 2017, revolutionizing how military personnel shop at PX facilities worldwide?

The Post Exchange (PX) system has been a crucial part of military life for generations, providing essential goods and services to service members and their families worldwide. These military retail operations have evolved from simple trading posts to sophisticated retail networks that rival civilian chains. This trivia question explores how modern technology has transformed these unique military retail institutions in recent years.

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• RFID inventory tracking systems
• The Exchange mobile shopping app with scan-and-go capability
• Automated drone delivery to forward operating bases
• Biometric payment verification systems

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